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10 tháng 9 2021

1.The waiter refilled my glass. My glass was refilled by the waiter

2.People throw away billions of cans every year. Billions of cans are thrown away every year 

3.People don’t use this road very often. This road is not used very often

4.We will grow a lot of trees in the park. A lot of trees will be grown in the park

5.Will you invite Lan to your birthday party? Will she be invited to your birthday party?

6.They are going to widen the road soon.  the road is going to be widened soon

7.Does she collect milk bottles? Are milk bottles collected by her?

8. My siter didn’t clean these rooms yesterday. These rooms weren't cleaned by my sister yesterday

9.They haven’t smoked cigarettes since last year. Cigarettes haven't been smoked since last year

10 tháng 9 2021

em cảm ơn nhiều

Bài 1: Turn these sentences into passive form 1. You don't prepare your lesson before school 2. They need to clean their classroom 3. Sombody cleans the classroom everyday 4. How do people learn languages? 5. John will collect me at the airport 6. Mr.Pike teaches us how to speak English properly 7. Your parents must sign this form 8. People play football all over the world 9. Our school will hold a meeting next Sunday 10. Will you invite him to your birthday party? 11. We mustn't...
Đọc tiếp

Bài 1: Turn these sentences into passive form

1. You don't prepare your lesson before school

2. They need to clean their classroom

3. Sombody cleans the classroom everyday

4. How do people learn languages?

5. John will collect me at the airport

6. Mr.Pike teaches us how to speak English properly

7. Your parents must sign this form

8. People play football all over the world

9. Our school will hold a meeting next Sunday

10. Will you invite him to your birthday party?

11. We mustn't wear jeans at work

12.People grow rice in tropical countries

13. People throw away billions of cans every year all over the world

14. Alan's knowledge about art doesn't impress me

15. Is a student pilot flying that airplane ?

16. My secretary will notify you next week

17. The waiter refilled my glass

18. When does he usually do his homework ?

19. Wastes from chemical factories have caused a lot of pollution

20. My sister cooks the meals everyday

21. She advised me to reuse milk bottles

22. They will have to widen the road soon

23. He asked them many difficult questions

24. They don't use this car very often

25. We'll grow a lot of trees and flowers in our school

26. They are painting the living room light blue

27. People have developed many different paper products

4
20 tháng 10 2019

Bài 1: Turn these sentences into passive form

1. You don't prepare your lesson before school
=> your lesson isn't prepared before school

2. They need to clean their classroom
=> their classroom need to be cleaned

3. Sombody cleans the classroom everyday
=> the classroom is cleaned everyday

4. How do people learn languages?
=> how are languages learnt ?

5. John will collect me at the airport
=> i will be collected at the airport by john

6. Mr.Pike teaches us how to speak English properly
=> we are taught how to speak english properly by mr. pike

7. Your parents must sign this form
=> this form must be signed by your parents

8. People play football all over the world

=> football is played all over the world

9. Our school will hold a meeting next Sunday
=> a meeting will be held by our school next sunday

10. Will you invite him to your birthday party?
=> will he be invited to your birthday pary ?

11. We mustn't wear jeans at work
=> jeans mustn't be worn at work

12.People grow rice in tropical countries
=> rice is grown in tropical countries

13. People throw away billions of cans every year all over the world
=> billions of cans are thrown every year all over the world

14. Alan's knowledge about art doesn't impress me
=> i am not impressed by alan't knowledge about art

15. Is a student pilot flying that airplane ?
=> is that airplane being flown by a student pilot ?

16. My secretary will notify you next week
=> you will be notified by my secretary

17. The waiter refilled my glass
=> my glass was refilled by the waiter

18. When does he usually do his homework ?
=> when is his homework usually done ?

19. Wastes from chemical factories have caused a lot of pollution
=> a lot of pollution has been caused by wastes from chemical factories

20. My sister cooks the meals everyday
=> the meals are cooked by my sister everyday

21. She advised me to reuse milk bottles
=> i was advised to reuse milk bottles

22. They will have to widen the road soon
=> the road will have to be widened soon

23. He asked them many difficult questions
=> many difficult questions were asked them

24. They don't use this car very often
=> this car isn't used very often

25. We'll grow a lot of trees and flowers in our school
=> a lot of trees and flowers will be grown in our school

26. They are painting the living room light blue
=> the living room are being painted light blue

27. People have developed many different paper products
=> many different paper products have been developed

20 tháng 10 2019

#Fix :

2. They need to clean their classroom

Their classroom needs to be cleaned

16. My secretary will notify you next week

You will be notified by my secretary next week

23. He asked them many difficult questions

They were asked many difficult questions by him

II . Change the following sentences into passive voice .1. We will grow a lot of trees in the parks........................................................................2. They are painting the living- room light blue.........................................................................3. People have developed many different paper products..........................................................................4. He asked us many difficult...
Đọc tiếp

II . Change the following sentences into passive voice .
1. We will grow a lot of trees in the parks.
.......................................................................
2. They are painting the living- room light blue.
........................................................................
3. People have developed many different paper products.
.........................................................................
4. He asked us many difficult questions.
.......................................................
5. They must widen this road soon.
.....................................................
6. She advised me to reuse milk bottles.
...................................................
7. My sister cleans these rooms every day.
..............................................
8. Wastes from chemical factories have caused a lot of pollution.
................................................................
9. When does he usually do his homework ?
...................................................................

1
20 tháng 2 2020

1.A lot of trees will be grown in the park.

2.The living room is being painted light blue.

3.Many different paper products have been developed.

4.We were asked many difficult question by him.

5.This road must be widened soon.

6.I was advised to use milk bottles by her.

7.These rooms are cleaned by my sister everyday.

8.A lot of pollution has been caused by wastes from chemical factories.

9.When was his homework usually done?

Passive or Active 1 . People do not use this road very often 2 . We will grow a lot of trees in the parks 3 . They are paining the living-room light blue 4 . People have developed many different paper products 5 . He asked us many difficult questions 6 . They must widen the road soon 7 . She advised me to reuse milk bottles 8 . My sister cleans these rooms every day 9 . Wastes from chemical factories have caused a lot of pollution 10.When does he usually do his homework ? 11.This...
Đọc tiếp

Passive or Active

1 . People do not use this road very often

2 . We will grow a lot of trees in the parks

3 . They are paining the living-room light blue

4 . People have developed many different paper products

5 . He asked us many difficult questions

6 . They must widen the road soon

7 . She advised me to reuse milk bottles

8 . My sister cleans these rooms every day

9 . Wastes from chemical factories have caused a lot of pollution

10.When does he usually do his homework ?

11.This tree was plated by my grandfather

12.The rubbish has not been collected

13.Is recycled papernbeing used ?

14.Will a new school be built very soon?

15.A lot of work is done every day

16.Many trees are cut down to make paper

17.Engish is considered the most iinternational language

18.These doors should be shut before 5pm

19.Many lakes and rivers have destroyed by pollution from factories

20.I was given a beautiful glass on my birthday by Hung

21.They made the fire in the traditionnal way

22.You must collect four bottles of water

23.How do people cook this kind of food ?

24.The chidren are redecorating the living-room

25.Have you tidied the kichen ?

2
15 tháng 4 2018

Passive or Active

1 . People do not use this road very often

=>this road isn't used very often

2 . We will grow a lot of trees in the parks

=>a lot of trees will be grown in the parks by us

3 . They are paining the living-room light blue

=>the living-room light blue is being painted

4 . People have developed many different paper products

=>many different paper products have been developed

5 . He asked us many difficult questions

=>we were asked many difficult questions by him

6 . They must widen the road soon

=>the road must be widened soon

7 . She advised me to reuse milk bottles

=>I was advised to reuse milk bottles by her

8 . My sister cleans these rooms every day

=>these rooms are cleaned by my sister every day

9 . Wastes from chemical factories have caused a lot of pollution

=>a lot of pollution has been caused by wastes from chemical factories

10.When does he usually do his homework ?

=>When is his homework usually done by him?

11.This tree was plated by my grandfather

=>my grandfather planted this tree

12.The rubbish has not been collected

=>They have not collected the rubbish

13.Is recycled papernbeing used ?

=>Do they use recycled papernbeing?

14.Will a new school be built very soon?

=>Will they build a new school very soon?

15.A lot of work is done every day

=>They do a lot of work every day

16.Many trees are cut down to make paper

=>They cut down many trees to make paper

17.Engish is considered the most iinternational language

=>They consider Engish the most iinternational language

18.These doors should be shut before 5pm

=>They should shut these doors before 5pm

19.Many lakes and rivers have been destroyed by pollution from factories

=>pollution from factories have destroyed many lakes and rivers

20.I was given a beautiful glass on my birthday by Hung

=>Hung gave me a beautiful glass on my birthday

21.They made the fire in the traditionnal way

=>the fire was made in the traditionnal way

22.You must collect four bottles of water

=>four bottles of water must be collected by you

23.How do people cook this kind of food ?

=>How is this kind of food cooked?

24.The chidren are redecorating the living-room

=>the living-room is being redecorated by the chidren

25.Have you tidied the kichen ?

=>Has the kichen been tidied by you?

15 tháng 4 2018

Passive or Active

1 . People do not use this road very often

-> This road is not used very often

2 . We will grow a lot of trees in the parks

-> A lot of trees will be grown in the parks by us

3 . They are paining the living-room light blue

-> The living room is being painted light blue

4 . People have developed many different paper products

-> Many different paper products have been developed

5 . He asked us many difficult questions

-> We were asked many difficult questions by him

6 . They must widen the road soon

-> The road must be widened soon

7 . She advised me to reuse milk bottles

-> I was advised to reuse milk bottles by her

8 . My sister cleans these rooms every day

-> These rooms are cleaned everyday by my sister

9 . Wastes from chemical factories have caused a lot of pollution

-> A lot of pollution has been caused by wastes from chemical factories

10.When does he usually do his homework ?

-> When is his homework usually done by him ?

11.This tree was plated by my grandfather

-> My grandfather planted this tree

12.The rubbish has not been collected

-> They haven't collected the rubbish

13.Is recycled paper being used ?

-> Are they using recycled paper ?

14.Will a new school be built very soon?

-> Will they build a new school very soon ?

15.A lot of work is done every day

-> They do a lot of work every day ?

16.Many trees are cut down to make paper

-> They cut down many trees to make paper

17.Engish is considered the most iinternational language

-> People consider English is the most international languag

18.These doors should be shut before 5pm

-> They should shut these doors before 5pm

19.Many lakes and rivers have been destroyed by pollution from factories

-> Pollution from factories have destroyed many lakes and rivers

20.I was given a beautiful glass on my birthday by Hung

-> Hung gave me a beautiful glass on my birthday

21.They made the fire in the traditionnal way

-> The fire was made in the traditionnal way

22.You must collect four bottles of water

-> Four bottles of water must be collected by you

23.How do people cook this kind of food ?

-> How is this kind of food cooked by people ?

24.The chidren are redecorating the living-room

-> The living room is being decorated by the children

25.Have you tidied the kichen ?

-> Has the kitchen been tidied by you ?

13 tháng 2 2020

CHANGE THESE SENTENCES INTO PASSIVE FORM

1. The milkman brings bottles of milk to houses.

=>bottles of milk are brought to houses by the milkman

2. John will collect me at the airport tonight.

=> i will be collected at the airport by john tonight

3. The manager must sign the cheque.

=>the cheque must be signed by the manager

4. They kept her waiting for half an hour.

=> she was kept waiting for half an hour

5. They have built a new hospital near the park.

=> a new hospital has been built near the park

6. People speak French and English in Canada.

=> French and English are spoken in canada

7. The boys clean the kitchen every day.

=> the kitchen is cleaned by the boys every day

8. The mechanic checked the car engines very carefully last week.

=>the car engines wwre checked very carefully by the mechanic last week

9. People grow rice in this field.

=>rice is grown in this field

10. They send the goods to Vung Tau by coach.

the goods are sent to Vung Tau by coach.

11. Nam can repair the bike for you.

=> you can have your bike repaired by nam

12. Mai irons her clothes every night.

mai's clothes are ironed every night

21 tháng 2 2017

1. The milkman brings bottles of milk to house

-> Bottles of milk are brought to houses by the milkman.

2. How do people learn language ?

-> How is language learned?

3. The manager must sign the cheque.

-> The cheque must be signed by the manager.

4. The kept me waiting for half an hour

-> I was kept waiting for an hour.

5. John will collect me at the airport

-> I will be collected at the airport by John.

6. They are building a new ring road round the city

-> A new ring road round the city is being built

7. We can't wear jeans at work

-> Jeans can't be worn at work.

8. Will you invite her to your birthday party ?

-> Will she be invited to your birthday party?

9. They have built a new hospital near the airport

-> A new hospital has been built near the airport.

10. Do they speak French and English in Canada

-> Are French and English spoken in Canada?

21 tháng 2 2017

https://hoc24.vn/hoi-dap/question/189549.html

I. Change these sentences into passive voice. 1. Empty the used tea in the tea-pot ___________________________________________________________________ 2. We haven't cleaned our car for ages. ___________________________________________________________________ 3. Our teachers told us not to talk in class. ___________________________________________________________________ 4. Strong coffee will make us awake during the night. à...
Đọc tiếp

I. Change these sentences into passive voice.

1. Empty the used tea in the tea-pot

___________________________________________________________________

2. We haven't cleaned our car for ages.

___________________________________________________________________

3. Our teachers told us not to talk in class.

___________________________________________________________________

4. Strong coffee will make us awake during the night.

à ___________________________________________________________________

5. You should eat less sweet at night.

___________________________________________________________________

6. The waiter refilled my glass.

___________________________________________________________________

7. My secretary will notify you your results next week.

___________________________________________________________________

8. Is a student pilot flying that airplane?

___________________________________________________________________

9. Alan's knowledge about art doesn't impress me.

___________________________________________________________________

10. People throw away billions of cans every year all over the world.

__________________________________________________________________

1
5 tháng 3 2020

I. Change these sentences into passive voice.

1. Empty the used tea in the tea-pot

________________The used tea in the tea-port is emptied___________________________________________________

2. We haven't cleaned our car for ages.

_________Our hasn't been cleaned for ages__________________________________________________________

3. Our teachers told us not to talk in class.

_____________We were told not to talk in the class by our teachers______________________________________________________

4. Strong coffee will make us awake during the night.

à ________________We will be made awake by strong coffee during the night___________________________________________________

5. You should eat less sweet at night.

_________Less sweet should be eaten at night__________________________________________________________

6. The waiter refilled my glass.

___________My glass was refilled by the waiter________________________________________________________

7. My secretary will notify you your results next week.

_____________you your result will be notified by my secretary next week______________________________________________________

8. Is a student pilot flying that airplane?

______Is that airplance being flown by a student pilot?_____________________________________________________________

9. Alan's knowledge about art doesn't impress me.

_______ I am not impressed by Alan's knowledge about art____________________________________________________________

10. People throw away billions of cans every year all over the world.

__________________________________________________________________Billions of cans are thrown every year all over the world

16 tháng 8 2017

Bài 1:Rewrite the sentence into passive sentence :

1. People don't use this room very often.

=> This room isn't used very often.

2. They will grow a lot of trees and flowers in the parks.

=> A lot of trees and flowers will be grown in the park.

3. They are planting the living-room blue .

=> The living-room is being planted blue.

4. People have developed many different paper products.

=> Many different paper products have been developed.

5. He asked us many difficult questions.

=> Many difficult were asked us .

6. They must widen the road soon.

=> The road must be widened soon.

7. She often reuses milk bottles.

=> Milk bottles are often reused.

8. When does he usually do his homework?

=> When is his homework usually done?

9. We haven't bought bread since last week,

=> Bread hasn't been bought since last week.

10. He put some flowers on the table while she was sleeping.

=> Some flowers were put on the table while she was sleeping.

11. I will arrange everything in time.

=> Everything will be arranged in time.

12. My parents did not let me go to school this morning because I was sick.

=> I wasn't let go to school by my parents this morning because I was sick.

13. He ought to have finished the report yesterday.

=> The report ought to have been finished yesterday.

14. Mr. John will pick you up at the airport.

=> You will be picked up at the airport by Mr. John.

15. She didn't take her children to the park.

=> Her teacher wasn't taken to the park.

16. They awarded him the first prize for his good deed.

=> He was awarded the first prize for his good deed.

I. Rewrite the sentences, use the verbs in present Passive form. 1.People can use milk for making butter and cheese. 2.The milkman brings bottles of milk to houses. 3.Careless driving causes many accidents. 4.Weeds cover the river banks. 5.People speak English all over the world. 6.They don’t use the house very often. 7.Do they speak French in this school? 8.They make a lot of beautiful toys from recycled plastic. 9.The workers clean the streets everyday. 10.Do they usually hold the concerts at...
Đọc tiếp
I. Rewrite the sentences, use the verbs in present Passive form.
1.People can use milk for making butter and cheese.
2.The milkman brings bottles of milk to houses.
3.Careless driving causes many accidents.
4.Weeds cover the river banks.
5.People speak English all over the world.
6.They don’t use the house very often.
7.Do they speak French in this school?
8.They make a lot of beautiful toys from recycled plastic.
9.The workers clean the streets everyday.
10.Do they usually hold the concerts at the university?

II. Change these sentences into the passive voice.
1.Somebody cleans the room everyday.
2.How do people learn English?
3.John will collect me at the airport.
4.Mr. Robinson teaches us how to speak English properly.
5.Your teacher must sign this form.
6.People play football all over the world.
7.Our form teacher will hold a class discussion next Monday.
8.Will you invite her to your birthday party?
9.We can’t wear jeans at work.
10.Do they speak French and English in Canada?

III. Write the sentences, using the adjective + to –infinitive structure.
1.It/ difficult/ learn/ Japanese.
2.We/ delighted/ get/ your letter/ yesterday.
3.It/ not easy/ answer/ these questions.
4.Your writing/ difficult/ read.
5.I/ surprised/ see/ Tom/ the party/ last night.
6.It/ impossible/ understand/ his theory.
7.They/ ready/ start/ now.
8.It/ interesting/ see/ that film.

IV. Combine each pair of the sentences, using the adjective + to-infinitive/ noun clause structures.
1.She was disappointed. She heard about it.
2.He will win the game. I am sure.
3.They passed all the exams. They are lucky.
4.John got Ann’s letter yesterday. He was very surprised.
5.She can’t come. I am afraid.
6.We heard about your father’s illness. We were sorry.
7.I have nothing better to offer you. I’m ashamed.
8.Susan received a lot of birthday presents. She was happy.
9.You wouldn’t come back. I was worried.
10.You are interested in protecting the environment. We are delighted.

V. Read the passage, then answer the questions.
Every day of the year throughout the world, about twenty million paper bags and newspapers are screwed and thrown away.
Making paper requires a lot of wood pulp and the work of million of workers. Many countries have had plans to recycle waste paper to save money and labor. In countries where there is the cooperation of the public, paper mills recycle as much as sixty percent of waste paper. Their simple work is to take away the ink, crush it and make it into pulp again. For every ton of recycled newsprint, twelve trees can be saved. We can insist that the more paper people save, the more trees are preserved.
1.How many paper bags and newspapers are thrown away every day?
2.What material do paper mills need to make paper?
3.What have many countries done to save money and labor in making paper?
4.What percentage of waste paper is recycled with the help of the public?
5.What do the paper mills do to reuse waste paper?
6.How many trees can be saved for every ton of recycled newsprint?

VI. Choose the suitable words or phrases to fill in the blanks.
1.Milk (brings/ is bring/ is brought/ has brought) to the house by the milkman everyday.
2.We were delighted (getting/ to get/ get/ got) your letter last week.
3.“Would you like to go to the movies tonight?” “I’m sorry, I can’t I (am doing/ do/ will do/ doing) my homework this evening.
4.Milk bottles can be (recycle/ thrown away/ broken/ reused) after being cleaned.
5.This project (is carried out/ carries out/ will carry out/ will be carried out) next month.
6.It’s dangerous (swim/ to swim/ swimming/ swam) in this river.
7.We are looking forward to (seeing/ see/ saw/ be seen) you in June.
8.It’s too cold outside. (Would you like to shut the windows/ Will you shut the windows, please/ Shall I shut the windows/ Can I shut the windows)? – Sure. I’ll do it right now.

VII. Complete the second sentence so that it has the same meaning to the first one.
1.We must pay the bill at once. The bill ………………
2.Many people in the world speak English. English ………………..
3.This question is difficult to understand. It’s ……………..
4.I will repair your bicycle tomorrow afternoon. Your bicycle ………………
5.“Don’t throw things away,” Miss Linda said to the students. Miss Linda asked ………………….
6.Penicillin can cure many dangerous diseases. Many ……………….
7.Does your country export rice to Britain? Is rice ……………….. 8.I was very delighted that I passed the final exams.I was very delighted....... 9.Keeping the environment clean is very important It's...................... 10.They will show the time machine to the public when thay finish it The time machine..................... 11.He was delighted to receive his aunt's letter He was delighted that his....... 12.Old car tires are recycled to make shoes and sandals People........ 13.I'm very sad that I wasn't accepted in that group I'm very sad not........
2
6 tháng 12 2017

I. Rewrite the sentences, use the verbs in present Passive form.
1.People can use milk for making butter and cheese.

=> Milk is used for making butter and cheese.
2.The milkman brings bottles of milk to houses.

=> Bottles of milk are brought to houses by the milkman.
3.Careless driving causes many accidents.

=> Many accidents are caused by careless driving.
4.Weeds cover the river banks.

=> The river banks are covered by weeds.
5.People speak English all over the world.

=> English is spoken all over the world.
6.They don’t use the house very often.

=> The house isn't used very often.
7.Do they speak French in this school?

=> Is French spoken in this school?
8.They make a lot of beautiful toys from recycled plastic.

=> A lot of beautiful toys are made from recycled plastic.
9.The workers clean the streets everyday.

=> The streets are cleaned everyday by the workers.
10.Do they usually hold the concerts at the university?

=> Are the concerts usually held at the university?

6 tháng 12 2017


II. Change these sentences into the passive voice.
1.Somebody cleans the room everyday.

=> The room is cleaned everyday.
2.How do people learn English?

=> How is English learnt?
3.John will collect me at the airport.

=> I will be collected at the airport by John.
4.Mr. Robinson teaches us how to speak English properly.

=> We are taught how to speak English properly by Mr. Robinson.
5.Your teacher must sign this form.

=> This form must be signed by your teacher.
6.People play football all over the world.

=> Football is played all over the world.
7.Our form teacher will hold a class discussion next Monday.

=> A class discussion will be held by our form teacher next Monday.
8.Will you invite her to your birthday party?

=> Will her be invited to your birthday party?
9.We can’t wear jeans at work.

=> Jeans can't be worn at work.
10.Do they speak French and English in Canada?

=> Is English spoken in Canada?

1. They opened a new mall in our city last month. 2.Lan hasn't finished her work yet. 3. Many foreigners visit Vietnam every Year. 4. We ought to water the plants every day. 5. The fire destroyed many houses in Hanoi lastweek. 6. Nguyen Du wrote Kieu's story. 7. I use my computer every day. 8. My parents take us to visit our relatives at Tet. 9. They can see many beautiful flowers at the spring flowers market. 10. Our teacher corrects our homework. 11. The children usually drink...
Đọc tiếp

1. They opened a new mall in our city last month.

2.Lan hasn't finished her work yet.

3. Many foreigners visit Vietnam every Year.

4. We ought to water the plants every day.

5. The fire destroyed many houses in Hanoi lastweek.

6. Nguyen Du wrote Kieu's story.

7. I use my computer every day.

8. My parents take us to visit our relatives at Tet.

9. They can see many beautiful flowers at the spring flowers market.

10. Our teacher corrects our homework.

11. The children usually drink milk and milk tea.

12. Our school will organize soccer matches next month.

13. Mr Nam has to pay the bill before Monday.

14. They throw away million of emty cans every Year.

15. He doesn't prepare his lessons well before class.

16. You must write your test carefully.

17. All students should clean the classroom before Tet.

18. People grow rice in these friends.

19. Nam is going to repair his bike.

20. Mr Thang taught us English last Year.

21. They cut down many trees to make paper.

22. Pollution from factory pollutes many lakes and rivers.

23. My mother has just made a new dress for me.

24. Lan helped her mother last Sunday.

25. They are using the computer in the computer room.

26. They'll build a new school soom.

27. Hoa is going to invite Lan to her birthday party.

28. You musn't use this machine.

29.We check our lessons carefully.

30. They recycled tires to make sandals a long time age.

3

#làm tiếp câu 15

16. You must write your test carefully.

=>Your test must be written carefully.

17. All students should clean the classroom before Tet.

=>The classrom should be cleaned by all students before Tet.

18. People grow rice in these friends.

=>Rice is grown in these friends by people

19. Nam is going to repair his bike.

=>His bike is going to be repaired by Nam

20. Mr Thang taught us English last Year.

=>We was taught English by Mr Thang last year.

21. They cut down many trees to make paper.

=>Many trees are cut down to make paper.

22. Pollution from factory pollutes many lakes and rivers.

=>Many lakes and rivers is polluted by the pollution from factory.

23. My mother has just made a new dress for me.

=>I have just been made a new dress by my mother.

24. Lan helped her mother last Sunday.

=>Her mother was helped by Lan last Sunday.

25. They are using the computer in the computer room.

=>The computer is being used in the computer room.

26. They'll build a new school soom.

=>A new school will be built soon.

27. Hoa is going to invite Lan to her birthday party.

=>Lan is going to be invited to Hoa's birthday party by Hoa.

28. You musn't use this machine.

=>This machine musn't be used

29.We check our lessons carefully.

=>Our lessons are checked carefully

30. They recycled tires to make sandals a long time age.

=>Tires are recycled to make sandals a long times ago.

P/S:Có một số từ bạn viết sai trên câu nên mình tự sửa lại ở phần trả lời

13 tháng 2 2019

Mọi người chuyển sang câu bị động giúp mình nha 😘😘😘