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1. If we reduce the energy we use, we……………….money.
A. are saving B. will save C. will be saved D. will be saving
2. At 3 o’clock tomorrow afternoon, I …………..the meeting on Climate Change.
A. attended B. have attended C. will be attended D. will be attending
3. The effects of climate change…………..at the high – level conference next month.
A. will discuss B. will be discussing C. will be discussed D. was discussed
4. Do you think renewable energy ……………..fossil energy before 2030?
A. will replace B. is replacing C. will be replacing D. will be replaced
5. The children …………..to school because it’s snowing.
A. are walking B. will walk C. will be walking D. won’t be walking
6. Solar and wind …………..instead of fossil fuels within 20 years?
A. are used B. will be used C. will use D. will be using
7. Humankind’s future…………….bright if they can utilize renewable energy in the future.
A. is B. was C. will be D. won’t be
8. Where …………..in ten years?
A. do you live B. are you living C. will you be lived D. will you be living
9. We ……………able to create a future that’s free of carbon pollution by using renewable energy sources.
A. will be B. won’t be C. will be being D. will have been
10. Solar panels ……………….outdoors to capture sunlight and transform it into electricity.
A. will place B. will be placing C. will be placed D. will have placed
Choose the best answer for each of the following sentences.
1. In my experiments, the liquid is cooled to 32oF. It always freezes.
A. If you cool the liquid to 32 degrees, it froze.
B. If you cooled the liquid to 32 degrees, it would freeze.
C. If you cool the liquid to 32 degrees, it will freeze.
D. If you had cooled the liquid to 32 degrees, it would have frozen.
2. It may rain this afternoon. I hope it doesn't because I don't want the match to be cancelled.
A. If it rains, the match is cancelled.
B. If it rains, the match will be cancelled.
C. If it rained, the match would be cancelled.
D. If it had rained, the match would have been cancelled.
3. Unfortunately, I don't know Philosophy, so I can't answer your question.
A. If I know Philosophy, I can answer your question.
B. If I know Philosophy, I will be able to answer your question.
C. If I knew Philosophy, I would be able to answer your question.
D. If I had known Philosophy, I would have been able to answer your question.
4. ______ there are some more ideas, we can end the meeting now.
A. If
B. As if
C. Unless
D. In case
5. If he ______ with us now, he _____ the beauty of nature of the National Park.
A. is / can enjoy
B. was / will enjoy
C. has been / would enjoy
D. were / could enjoy
6. If they had searched more carefully, they _____ the watch sooner.
A. will find
B. would find
C. found
D. would have found
7. If I had got up early, I _______ to have breakfast now.
A. have
B. had
C. would have
D. would have had
8. I cannot buy a new computer ____ I save enough money.
A. if
B. even if
C. unless
D. as if
9. Most people you meet will be polite to you ______ .
A. if you are polite to them
B. if you will be polite to them
C. unless you are polite to them
D. if you were polite to them
10. If you do so, it _____ the matter worse.
A. makes only
B. would only make
C. will only make
D. had only made
11. You ______ English fluently unless you practice it every day.
A. will speak
B. will not speak
C. can speak
D. did not speak
12. Hurry up ______ you will miss the bus and be late for school.
A. if
B. and
C. or
D. as
13. You will get a good seat if you ______ first.
A. come
B. came
C. have come
D. will come
14. Sam will not graduate _______ .
A. if he passed all the tests
B. if he does not pass all the tests
C. unless he passes all the tests
D. unless he had passed all the tests
She wish=> wishes she could speak English well.
If only it didn’t rained => rain.
I wish I was => were a doctor to save people.
I wish I have => had more time to look after my family.
He wishes it didn’t rain => hadn't rained yesterday.
If only my father gives => gave up smoking.
I wish I studied => had studied very well last year.
I wish you will => would come to my party next week.
I wish it stops => stopped raining now.
If only you are=> were my sister.
She wishes she is=> were the most beautiful girl in the world.
I wish Miss Hoa will=> would come here and stay stay with us next week.
I wish I am=>were at home with my family now.
If only I could been=> be there with you.
She wish she could go home now. => wishes
Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been
Lần sau bn vt thì cách ra cho dễ nhìn nhé~~~~
Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she
2.If you_____to me, you wouldn’t have got so much trouble.
A. listened B. would listen C. had listened D. Would have listened
3.If you don’t know how to spell a word, you_____ look it up in the dictionary.
A. must B. will C. should D. ought
4.If the sun _____, we _____for a walk.
A. shines / will go B. shone / will go C. shone / would go D. had shone / would go
5.The campfire _____ if it _____ last night.
A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains
6.But for our parents, we _____ successful in life.
A. will never be B. would never be C. wouldn’t have be D. would have never been
7.If I _____ my wallet at home this morning, I _____ money for lunch now.
A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had
8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do.
A. were / would know B. is / will know C. had been / would have known D. was / would know
9.If we _____ the plans carefully, we would not have had so many serious mistakes.
A. study B. had studied C. studied D. were studying
10.I will never talk to you again _____ you apologize me _____ your being rude.
A. if / for B. unless / for C. or / of D. whether / or
1. My home hasn't installed a solar water heater. If/ my home/ install/ a solar water hearter/ we / save a lot of energy
=> My home hasn't installed a solar water heater. If my home installed a solar water heater, we would save a lot of energy.
2. Not all household in Viet Nam turn off lights during the Earth Hour. If/all households/ Viet Nam/ turn off lights / the Earth Hour / we/ save enough electricity / develop our rural areas
=> Not all household in Viet Nam turn off lights during the Earth Hour. If all households in Vietnam turn off lights during the Earth Hour, we would save enough electricity to develop our rural areas.
3. Some student in our scholl still throw litter on the school ground. If/ student/ not throw litter/ the school ground/ our campus /look/ greener/fesher => Some students in our school still throw litter on the school ground. If some students didn't throw litter on the school ground, our campus would look greener and fesher.4. People use aluminium cans instead of glass botter . If/ people/ use/ glass boter / they /use/ again and again
=> People use aluminium cans instead of glass bottle. If people used glass bottle, they would use again and again.
5. Our school ground is large but we don't have a wind turbine. If / we / install /a wind turbine / our school / becom / more eco friendly
=> Our school ground is large but we don't have a wind turbine. If we installed a wind turbine, our school would become more eco friendly.
6. People don't use organic fertilizers. If/ people / use / organic fertilizers / they / prevent/ land pollution
=> People don't use organic fertilizers. If people used organic fertilizers, they would prevent land pollution.
7. A large number f people ride their motorbikes to word . If / people /ride/ bikes /they/ keep /air / less polluted
=> A large number of people ride their motorbikes to word . If people rode bikes ,they would keep the air less polluted.
8. That factory doesn't have a wastewater treatment system. If / that factory / have / wastewater treatment system / river/ not become / so polluted
=> That factory doesn't have a wastewater treatment system. If that factory had wastewater treatment system, river wouldn't become so polluted.
1. will stay
2. has
3. doesn't rain
4. recycle - won't produce
5. don't water - will die
6. is - won't go
7. will save - don't waste
8. will happen - keep
9. don't stop - will endanger
10. dump - won't be
1. If it ___is______ fine tomorrow, we'll plant some flowers in the back yard. (is/ were/was/been)
2. If people use public buses instead of motorbikes, they ___will save____ money and natural resources. (save/saved/will save/would save)
3.If it____rains_____ tomorrow, we'll stay at home and watch TV. (rain/rains/rained/raining)