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21 tháng 9 2018

bai 1 :hoàn thành các câu sau:

1) going out would be better than staying at home

-> I'd rather go out than stay at home

2) they will have to answer the question again

-> The question will have to be answered again

3) I wish you had seen your dentist yesterday

-> you should see your dentist yesterday

4) if you keep silent , we will begin our lesson

-> so you don't keep silent, we won't begin our lesson

5) I'm sure it wasn't her fault

-> it can't

6) she made the mistake because she didn't think carefully

-> if she had thought carefully, she wouldn't have made the mistake

7) I found it difficult for me to make up mind immediately

-> I had

8) You should have the window painted

-> the window needs being painted

9) there is nothing I can't do for you

-> I am willing to do anything for you

10) she doesn't like being laughed at

-> she hates being laughed at

21 tháng 9 2018

bai 1 :hoàn thành các câu sau:

1) going out would be better than staying at home

-> I'd rather go out than stay at home

2) they will have to answer the question again

-> The question will have to be answered again

3) I wish you had seen your dentist yesterday

-> you should see your dentist yesterday

4) if you keep silent , we will begin our lesson

-> so we won't begin our lesson, you don't keep silent,

5) I'm sure it wasn't her fault

-> it can't have been her fault

6) she made the mistake because she didn't think carefully

-> if she had thought carefully, she wouldn't have made the mistake

7) I found it difficult for me to make up mind immediately

-> I had difficulty in making up my mind now

8) You should have the window painted

-> the window needs painting

9) there is nothing I can't do for you

-> I am willing to do anything for you

10) she doesn't like being laughed at

-> she hates being laughed at

bai 2 :hoàn thành các câu sau:

1) there's no need for you to drive carelessly

-> you don't need to drive carelessly

2) what a pity I missed the ferry

-> I wish I hadn't missed the ferry

3) I advise you to give up smoking

-> you'd better give up smoking

4) I had hardly arrived when she went to school

-> hardly had I arrived when she went to school

5) the last time I went for coffee was 5 days ago

-> I haven't gone for coffee for 5 days

6) I started working as a writer 2 years ago

-> I have worked as a writer for 2 years

7) did they repair your car last month?

-> did you have your car repaired last month?

9) before going out with him . I had finished the homework

-> when I went out with him, I had finished the homework

10) she is a more careful driver than her brother

-> her brother drives more careless than she does

1, Going out would be better than staying at home \(\rightarrow\) I'd ..................................... 2, They will have to answer the question again \(\rightarrow\) The question .................................. 3, I wish you had seen your dentists yesterday \(\rightarrow\) You should .................................... 4, If you keep silent , we will begin our lesson \(\rightarrow\) So ................................................. 5, I'm sure it wasn't her fault...
Đọc tiếp

1, Going out would be better than staying at home

\(\rightarrow\) I'd .....................................

2, They will have to answer the question again

\(\rightarrow\) The question ..................................

3, I wish you had seen your dentists yesterday

\(\rightarrow\) You should ....................................

4, If you keep silent , we will begin our lesson

\(\rightarrow\) So .................................................

5, I'm sure it wasn't her fault

\(\rightarrow\)It can't .............................................

6, She made the mistake beacause she didn't think carefully

\(\rightarrow\)If ....................................................

7, I found it difficult for me to make up my mind immediately

\(\rightarrow\) I had ..............................................

8, You should have the window painted

\(\rightarrow\) The window needs ...............................

9, There is nothing I can't do for you

\(\rightarrow\)I am willing ...........................................

10 She doesn't like being laughed at

\(\rightarrow\) She hates ................................................

1
18 tháng 6 2019

1, Going out would be better than staying at home

→→ I'd ...rather go out than stay at home..................................

2, They will have to answer the question again

→→ The question .....will have to be answered again.............................

3, I wish you had seen your dentists yesterday

→→ You should .....have seen your dentists yesterday...............................

4, If you keep silent , we will begin our lesson

→→ So ..long as you keep silent , we will begin our lesson...............................................

5, I'm sure it wasn't her fault

→→It can't ....have been her fault.........................................

6, She made the mistake beacause she didn't think carefully

→→If ...she had thought carefully,she wouldn't have made the mistake.................................................

7, I found it difficult for me to make up my mind immediately

→→ I had ....difficulty in making up my mind immediately..........................................

8, You should have the window painted

→→ The window needs ..painting.............................

9, There is nothing I can't do for you

→→I am willing ....to do everything for you.......................................

10 She doesn't like being laughed at

→→ She hates ...being laughed at.............................................

1, Going out would be better than staying at home→ I'd .....................................2, They will have to answer the question again→ The question ..................................3, I wish you had seen your dentists yesterday→ You should ....................................4, If you keep silent , we will begin our lesson→ So .................................................5, I'm sure it wasn't her fault→It can't .............................................6, She made the...
Đọc tiếp

1, Going out would be better than staying at home

 I'd .....................................

2, They will have to answer the question again

 The question ..................................

3, I wish you had seen your dentists yesterday

 You should ....................................

4, If you keep silent , we will begin our lesson

 So .................................................

5, I'm sure it wasn't her fault

It can't .............................................

6, She made the mistake beacause she didn't think carefully

If ....................................................

7, I found it difficult for me to make up my mind immediately

 I had ..............................................

8, You should have the window painted

 The window needs ...............................

9, There is nothing I can't do for you

I am willing ...........................................

10 She doesn't like being laughed at

 She hates ................................................

1
18 tháng 6 2019

Tham khảo tại link này :https://h.vn/hoi-dap/question/664473.html

1.They felt unsafe until they had crossed the border -->Not until.................... 2.The film will start before we arrive -->By the time........................... 3.The car is too expensive for me to buy -->I can't........................ 4.He took me to HRF Restaurant -->I remember........................... 5.She didn't attend the class because her illness was seriously -->She was.......................... 6.Without your information, I wouldn't have made the beatiful...
Đọc tiếp

1.They felt unsafe until they had crossed the border

-->Not until....................

2.The film will start before we arrive

-->By the time...........................

3.The car is too expensive for me to buy

-->I can't........................

4.He took me to HRF Restaurant

-->I remember...........................

5.She didn't attend the class because her illness was seriously

-->She was..........................

6.Without your information, I wouldn't have made the beatiful speech

-->Thanks to..............

7.It was careless of you to park your car there

-->You should.......................

8.I missed the train

-->By the time.......................

9.Why don't you stay at home?

-->I'd rather..................

10.Tom speaks so slowly that the students get bored

-->Tom is such.....................

11.He had his car repaired yesterday

-->His car.............................

12.It is believed that she saved the boy

-->She is believed..........

13.The flight was cancelled because of the heavy rain

-->But..................

14.The house was too expensive for us to buy

-->So..................

15.I used to work as a waiter

-->No longer...........

16.May I borrow your bicycle?

-->Would........................

17.You are old enough to look after yourself

-->It's....................

18.Why don't you take the medicine?

-->If.....................

19.Iam interested in why she didn't turn up at the meeting

-->The only thing................

20.I'm sure she didn't steal your ring

-->She can't................

21.She rang as soon as they locked the door

-->No sooner..............

22.I wish you had seen your dentist yesterday

-->You should........

23.If you keep silent, we will begin our lesson

-->So............

24.I'm sure it wasn't her fault

-->It can't........................

1
22 tháng 1 2020

1.They felt unsafe until they had crossed the border

-->Not until...... they crossed the border, they felt unsafe

2.The film will start before we arrive

-->By the time.. we arrive , the film will start before..............

3.The car is too expensive for me to buy

-->I can't...buy the car because it is too expensive ....

4.He took me to HRF Restaurant

-->I remember... that he took me to HRF restaurant.

5.She didn't attend the class because her illness was seriously

-->She was..... seriously ill so she didn't attend the class.. ...

6.Without your information, I wouldn't have made the beatiful speech

--> If you hadn't had information , I wouldn't have made the beatiful speech

7.It was careless of you to park your car there

-->You should...park your car there more carefully....

8.I missed the train

-->By the time....... I missed the train.

9.Why don't you stay at home?

-->I'd rather...you stayed at home.....

10.Tom speaks so slowly that the students get bored

-->Tom is such..a slowly speaker that the students get bored.....

11.He had his car repaired yesterday

-->His car...had repaired by him yesterday ....

12.It is believed that she saved the boy

-->She is believed....that she saved the boy

13.The flight was cancelled because of the heavy rain

--> Because it rained heavily, the flight was cancelled........

14.The house was too expensive for us to buy

--> The house was too expensive that we didn't buy.

15.I used to work as a waiter

-->No longer...I work as a waiter ........

16.May I borrow your bicycle?

-->Would....you mind if I borrowed your bicycle ?...

17.You are old enough to look after yourself

-->It's....... old enough for you to look after yourself.............

18.Why don't you take the medicine?

-->If....you took the medicine , you would be better....

19.Iam interested in why she didn't turn up at the meeting

-->The only thing.. I care about is why she didn't turn up at the meeting.

20.I'm sure she didn't steal your ring

-->She can't....... steal your ring.........

21.She rang as soon as they locked the door

-->No sooner... had they locked the door than she rang. ....

22.I wish you had seen your dentist yesterday

-->You should..see your dentist yesterday....

23.If you keep silent, we will begin our lesson

-->So..you keep silent , we will begin our lesson​....

24.I'm sure it wasn't her fault

-->It can't.... be her fault....

25 tháng 8 2018

1.Unless you send to the hospital, she will die

2.Unless you leave the place immediately, you will be in danger

3.Unless you ask ,she won't explain that ...

4.Unless she makes the mistake again,theman ..

5.Unless Bi and l wait for you,we can take the taxi.

26 tháng 8 2018

I. Make up sentences with '' unless '':

1. If you don't send to the hospital, she will die.

=> Unless you send to the airport, she will die.

2. If you don't leave the place immediately, you will be in danger.

=> Unless you leave the place immediately, you will be in danger.

3. If you don't ask, she won't explain that reason to you.

=> Unless you ask, she won't explain that reason to you.

4. If she doesn't make the mistake again, the man won't get angry at her.

=> Unless she makes the mistake again, the man won't get angry at her.

5. If Bill and I don't wait for you, we can take the taxi.

=> Unless Bill and I wait for you, we can take the taxi.

6. If you come late, they will punish you.

=> Unless you come early, they will punish you.

7. If I have spare time, I will see you off at the airport.

=> Unless I have spare time, I won't see you off at the airport.

8. I will call you if I have information about the course.

=> Unless I have information about the course, I won't call you.

9. If the students don't understand my lesson, I will explain it to them again.

=> Unless the students understand my lesson, I will explain it to them again.

10. If I see Mr. Tom, I will give him the present.

=> Unless I see Mr. Tom, I won't give him the present.

Tìm lỗi sai và sửa: It was a great to see you again after so long and to be able to discuss about all the things we used to do when we were students together learning the English in London. I hope you had a good journey home . Did the flight reach to Athens in time for you to get up your connection ? I hope so. Do you remember I promised to send you that a book we talked about ? Well, I've searched in everywhere for it but so far I haven't managed to find it . As soon as I will do , I'll...
Đọc tiếp

Tìm lỗi sai và sửa:
It was a great to see you again after so long and to be able to discuss about all the things we used to do when we were students together learning the English in London. I hope you had a good journey home . Did the flight reach to Athens in time for you to get up your connection ? I hope so. Do you remember I promised to send you that a book we talked about ? Well, I've searched in everywhere for it but so far I haven't managed to find it . As soon as I will do , I'll put it in the post to for you - it's a really exciting story . And now I'd like to ask you about a favor , not for me but for my sister . She wants to have work in Greece . She doesn't mind what she does - she would be too happy to work in a bar to look after children . So if only you khow of anything , please let us know . She'd like to spend until one year there from next January , which it should be possible.I think. She has been decided it is the best thing for her . I', looking forward to know hearing from you soon . Give my regards to your family
Best wishes , Costars
1........... 2.................. 3........... 4........... 5............ 6............. 7 .......... 8.............. 9.............. 10................. 11.................. 12............. 13................. 14.................. 15........... 16.................. 17...........

1
13 tháng 6 2019

có vẻ đề không phải sửa lỗi sai mà là tìm từ thừa, ấn đây xem đáp án, vừa làm xong

Underline odd words in the following paragraph. It was a great to see you again after so long and to be able to discuss about all the things we used to do when we were students together learning english in London. I hope you and had a good time journey home. Did the flight reach to Athens in time for you to get up your connection? I hope so. Do you remember I promised to send you that a book we talked about? Well, I've searched in everywhere for it but so far I haven't managed to find it. As...
Đọc tiếp

Underline odd words in the following paragraph.

It was a great to see you again after so long and to be able to discuss about all the things we used to do when we were students together learning english in London. I hope you and had a good time journey home. Did the flight reach to Athens in time for you to get up your connection? I hope so. Do you remember I promised to send you that a book we talked about? Well, I've searched in everywhere for it but so far I haven't managed to find it. As soon as I will do, I'll put it in the post to for you - it's a really exciting story. And now I'd like to ask you about a favor, ont for me but for mys sister. She wants to have a work in Greece. She doesn't mind what she does- she would be to happy to work in a bar or to look after children. So if only you know of anything, please let us know. She'd like to spend until one year there from next January, which it should be possible. I think. She has been decided it is the best thing for her. I'm looking forward to know hearing from you soon. Give my regards to your family.

Best wishes, Costars

3
13 tháng 6 2019

Underline odd words in the following paragraph.

It was a great to see you again after so long and to be able to discuss about all the things we used to do when we were students together learning english in London. I hope you had a good time journey home. Did the flight reach to Athens in time for you to get up your connection? I hope so. Do you remember I promised to send you that a book we talked about? Well, I've searched in everywhere for it but so far I haven't managed to find it. As soon as I will do, I'll put it in the post to for you - it's a really exciting story. And now I'd like to ask you about a favor, ont for me but for mys sister. She wants to have a work in Greece. She doesn't mind what she does- she would be to happy to work in a bar or to look after children. So if only you know of anything, please let us know. She'd like to spend until one year there from next January, which it should be possible. I think. She has been decided it is the best thing for her. I'm looking forward to know hearing from you soon. Give my regards to your family.

Best wishes, Costars

13 tháng 6 2019

Tổng có 17 từ thừa

Complete the sentences using the words in bold . Use two to five words 1. will you ever think about finding a flat of your own ? time it's .......................................................about finding a flat of your own 2. look at how he lives-he thinks he's a millionaire if he lives ..................................................a millionaire 3. this summer , i would rather book a holiday in Monaco than Lyons prefer this summer , i...
Đọc tiếp

Complete the sentences using the words in bold . Use two to five words

1. will you ever think about finding a flat of your own ?

time it's .......................................................about finding a flat of your own

2. look at how he lives-he thinks he's a millionaire

if he lives ..................................................a millionaire

3. this summer , i would rather book a holiday in Monaco than Lyons

prefer this summer , i ...............................................................a holiday in Monaco rather than Lyons

4. why didn't you tell me yourself that you were leaving ?

rather i'd.....................................................me yourself that you were leaving

5. she wants to be more like her mother

wishes she...............................................................more like her mother

6. i should have taken that job in canada last year

only if.....................................................................that job in canada last year

7. you should have checked the oil before you set out

better it........................................................................you had checked the oil before you set out

8. i was about to buy the painting , when i realised it was a fake

if i would have brought the painting .......................................................it was a fake

9. i didn't see the tv programme because i didn't know it was on

known if......................................................the tv programme was on , i would have seen it

10. i think you should go on holiday

were if.............................................................., i would go on holiday

11. you shouldn't have told Sally my secret

told i'd............................................................... Sally my secret

12. you'd think he was a politician

though he behaves.......................................................................... a politician

13. you should be in bed now. it's late

went it's......................................................................to bed

14. it would have been better if you had passed on the message

only if..................................................................the message

15. if the teacher asked you to answer that question , what would you say?

asked suppose........................................................to answer that question , what would you say/

16. it's a pity it's a raining

stop i.....................................................................................raining

17. she couldn't tell you because she didn't know

would had.....................................................................told you

18. why did i listen to John? he always tells lies

listened if...................................................................to John. he always tells lies

19. we should have left by now if we don't want to miss the bus

time it's...............................................................if we don't want to miss the bus

20. i would have liked you to have informed my parents about my change of plan

rather i..........................................................................my parents about my change of plan

21. it would have been better if they had got the earlier train

only if.................................................................................the earlier train

22. you ought to have set a wedding date by now

time it's....................................................................a wedding date

2
4 tháng 3 2018

Complete the sentences using the words in bold . Use two to five words

1. will you ever think about finding a flat of your own ?

time it's ...............time you thought........................................about finding a flat of your own

2. look at how he lives-he thinks he's a millionaire

if he lives .....as if he were.............................................a millionaire

3. this summer , i would rather book a holiday in Monaco than Lyons

prefer this summer , i .................prefer to book..............................................a holiday in Monaco rather than Lyons

4. why didn't you tell me yourself that you were leaving ?

rather i'd.........rather you told............................................me yourself that you were leaving

5. she wants to be more like her mother

wishes she..........wishes she were.....................................................more like her mother

6. i should have taken that job in canada last year

only if.....................................................................that job in canada last year

7. you should have checked the oil before you set out

better it...........'s better.............................................................you had checked the oil before you set out

8. i was about to buy the painting , when i realised it was a fake

if i would have brought the painting ................if I hadn't realised.......................................it was a fake

9. i didn't see the tv programme because i didn't know it was on

known if.................i had known.....................................the tv programme was on , i would have seen it

10. i think you should go on holiday

were if........i were you......................................................, i would go on holiday

11. you shouldn't have told Sally my secret

told i'd.......................rather you hadn't told...................................... Sally my secret

12. you'd think he was a politician

though he behaves.............as though he were............................................................. a politician

13. you should be in bed now. it's late

went it's.......time you went...............................................................to bed

14. it would have been better if you had passed on the message

only if.......only ...you had passed on........................................................the message

15. if the teacher asked you to answer that question , what would you say?

asked suppose.......that you were asked.................................................to answer that question , what would you say/

16. it's a pity it's a raining

stop i..............wish it would stop......................................................................raining

17. she couldn't tell you because she didn't know

would had..........she known, she would have...........................................................told you

18. why did i listen to John? he always tells lies

listened if...................................................................to John. he always tells lies

19. we should have left by now if we don't want to miss the bus

time it's..........time we left .....................................................if we don't want to miss the bus

20. i would have liked you to have informed my parents about my change of plan

rather i........would rather you had informed..................................................................my parents about my change of plan

21. it would have been better if they had got the earlier train

only if.........only they had got........................................................................the earlier train

22. you ought to have set a wedding date by now

time it's.......time you had set.............................................................a wedding date

4 tháng 3 2018

Complete the sentences using the words in bold . Use two to five words

1. will you ever think about finding a flat of your own ?

time it's ......time you thought............about finding a flat of your own

3. this summer , i would rather book a holiday in Monaco than Lyons

prefer this summer , i ...prefer book.....a holiday in Monaco rather than Lyons

4. why didn't you tell me yourself that you were leaving ?

rather i'd.........rather you told...........me yourself that you were leaving

5. she wants to be more like her mother

wishes she............wishes he were .....................more like her mother

7. you should have checked the oil before you set out

better it.....had better...you had checked the oil before you set out

8. i was about to buy the painting , when i realised it was a fake

if i would have brought the painting .....if i had realised.....it was a fake

9. i didn't see the tv programme because i didn't know it was on

known if..had known..the tv programme was on , i would have seen it

10. i think you should go on holiday

were if................I were you..........................., i would go on holiday

11. you shouldn't have told Sally my secret

told i'd....................better you told............................ Sally my secret

13. you should be in bed now. it's late

went it's...................time you went.....................................to bed

16. it's a pity it's a raining

stop i..................wish it would stop..............................raining

17. she couldn't tell you because she didn't know

would had.............she known,shw would have...............told you

19. we should have left by now if we don't want to miss the bus

time it's..........time we will have left by now.................if we don't want to miss the bus

20. i would have liked you to have informed my parents about my change of plan

rather i..........would rather you had informed.......my parents about my change of plan

22. you ought to have set a wedding date by now

time it's..............time you had set.................a wedding date

Rerwite the following sentences that keep the same meaning. 1. I don't play tennis as well as you do. You .................................................. 2. I haven't been to the dentist's for two years. It's ............................. 3. Whenever she went to Paris she bought a new dress. She never .................. 4. I spent seven years at secondary school and then I went to university. After ................................................. 5. It's not worth living to make...
Đọc tiếp

Rerwite the following sentences that keep the same meaning.

1. I don't play tennis as well as you do.

You ..................................................

2. I haven't been to the dentist's for two years.

It's .............................

3. Whenever she went to Paris she bought a new dress.

She never ..................

4. I spent seven years at secondary school and then I went to university.

After .................................................

5. It's not worth living to make her change her mind.

There's .............................................

6. He said he was not guilty of stealing the car.

He denied ..................................

7. Is this the only way to reach the city centre?

Isn't there ................................?

8. He never suspected that the money had been stolen.

At no time ..................................................

9. It's my opinion that you should take more exersise.

If I............................................................

10. I was going to leave, but because of what he said, I didn't.

She persuaded ...................................

1
30 tháng 1 2018

1. You play tennis better than I do.

2. It's two years since I went to the dentist's.

3. She never went to Paris without buying a new dress.

4. After having spent seven years at secondary school I went to university.

5. There's no need to make her change her mind.

6. He denied for stealing (having stolen) the car/ that he had stolen the car.

7. Isn't there another way to reach the city centre.

8. At no time did he suspect (that) the money had been stolen/ someone had stolen the money.

9. If I were you, I'd take more exercise.

10. She persuaded me not to leave.

1.I prefer ordering food to cooking it ( rather)-> I.............................................................................................. 2.The government should do something about unemployment immediately .(time) It's.............................................................................................. 3.I'm sure she wasn't the one who stole the money .(can't) She.............................................................................................. 4.It would be a...
Đọc tiếp

1.I prefer ordering food to cooking it ( rather)-> I..............................................................................................

2.The government should do something about unemployment immediately .(time)

It's..............................................................................................

3.I'm sure she wasn't the one who stole the money .(can't)

She..............................................................................................

4.It would be a good idea to tidy the desk before starting work (you)

If ..............................................................................................

5.Your hair needs cutting .(should)._> You....................................................cut

6.I can't tolerate this kind of behaviour any longer .(put)

I can't ..............................................................................................

7.The dessert was better than the main course .(wasn't)

The main course ..............................................................................................

8.Well done! You've got the job you applied for,'' she said to him .(congratulated)

She ..............................................................................................

9.The football match was postponed due to the rain .( put)

The footbal watch was..............................................................................................

10.There was no one here expect John .(apart).-> There was..............................................................................................

11.You wi;; have to pay at least $500 to get that watch.(impossible)

You'll find..............................................................................................

12.I don't want to eat this now.(rather).-> I..............................................................................................

13.It's possible that she didn't understand what I had said.( might)

She ..............................................................................................

14.I couldn't concentrate fully bacause of the loud music.( difficult)

The loud music..............................................................................................

15.She is certain to have heard about it on the news.(must)

She ..............................................................................................

16.Tettorists tried to destroy the bridge using dynamite .(blow)

Tettorists tried ..........................................................................................

17.He went to Spain to try to speak Spanish better.( brush)

He went to Spain ..............................................................................................

18.Ask Paul to do it.You can rely on him.(let)

Ask Paul to do it.He ..............................................................................................

1
1 tháng 12 2019

1.I prefer ordering food to cooking it ( rather)-> I would rather order food than cook it

2.The government should do something about unemployment immediately .(time)

It's (high) time the government did something about unemployment

3.I'm sure she wasn't the one who stole the money .(can't)

She can't have been the one who stole the money

4.It would be a good idea to tidy the desk before starting work (you)

If I were you, I would tidy the desk before starting work

5.Your hair needs cutting .(should)._> You should have your hair cut

6.I can't tolerate this kind of behaviour any longer .(put)

I can't put up with this kind of behaviour any longer

tolerate = put up with

7.The dessert was better than the main course .(wasn't)

The main course wasn't as good as the dessert

8.Well done! You've got the job you applied for,'' she said to him .(congratulated)

She congratulated him on getting the job he applied for

9.The football match was postponed due to the rain .( put)

The footbal watch was put off due to the rain

put off = postpone

10.There was no one here expect John .(apart).-> There was no one here apart from John

11.You will have to pay at least $500 to get that watch.(impossible)

You'll find it impossible to get that watch for less than $500

12.I don't want to eat this now.(rather).-> I would rather not eat this now

13.It's possible that she didn't understand what I had said.( might)

She might not have understood what I had said

14.I couldn't concentrate fully bacause of the loud music.( difficult)

The loud music made it difficult for me to concentrate fully

15.She is certain to have heard about it on the news.(must)

She must have heard about it on the news

16.Tettorists tried to destroy the bridge using dynamite .(blow)

Tettorists tried to blow the bridge sky-high

to blow sth sky-high = to make sth explode

17.He went to Spain to try to speak Spanish better.( brush)

He went to Spain to brush up (on) his Spanish

to brush up (on) sth = to improve knowledge of sth

18.Ask Paul to do it.You can rely on him.(let)

Ask Paul to do it.He won't let you down

to let sb down = to disappoint sb