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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
Choose the best answer for each of the fllowing sentences
1. ............ if you work harder, you will be sacked.
A. Whether B. If C. However D. Unless
2. 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
3. If you take the ice out of the fridge, it ...........
A. vaporizes B. melts C. heats D. disappears
4. 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
5. 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
6. Unless we .......... more snow, we can't go skiing.
A. will have B. have C. have had D. had
7. You'll fail the exam ........... you start revising.
A. if B. until C. when D. unless
8. Unless you wash the car, you .............. not drive it at the weekend
A. would B. could C. have to D. may
9. If Peter ............... his car before the drive, he ................ the problem of out of petrol.
A. cheked / will not get B. had checked / would not have got
C. checks / will not have got D. would be checking / will not have got
10. 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 step on the mine, it wouldn't have exploded.
'Could you get there and back in one day?' I asked. (I asked if he . . .)
=>I asked if he could get there and back in one day
3 'Could you translate this for me, please?' I asked the official.
=> I asked the official to translate that for me
7 'Will you have a drink?' he said.
=>He asked me if I would have a drink
8 'Why don't you install gas central heating?' said the advertisement.
=>the advertisement asked mr to install gas central heating
9 'Will you read this very carefully, please?' he said to me.
=>He asked me if I would read that very carefully
10 'Shall I tell him what happened?' she asked me.
=>she asked me to tell him what had happened
11 'Wouldn't you to look ten years younger?' said the hairdresser.
=>the hairdresser asked me not to look ten years younger
12 I'm going to Brighton tomorrow,' said Ann.
=>Ann said she was going to Brighton the next day
13 'Can I have a sweet?' said the small boy.
=> the small boy asked me to have a sweet
14 'Can we stay up till the end of the programme?' said the children.
=>the children asked me to stay up till the end of the programme
15 'Could I have the weekend off?' he asked his boss.
=>he asked his boss to have the weekend off
16 'Could I leave early on Friday?' he said.
=>he asked me to leave early on Friday
17 'Why don't you pop music?' the teenagers asked him.
=> the teenagers asked him to pop music
18 'Why don't you take up the oboe again?' said my friends, (advise)
=>my friends advised me to take up the oboe again
24 'Would you to see over the house?' I asked her.
=>I asked her to see over the house
28 'Would you mind living by yourself for six months?' they asked.
=?they asked me to live by myself for six months
30 'Why don't you trust him?' I asked Ann.
=>I asked Ann to trust him
VII. Choose the sentence which has the same meaning as the root one.
1. " I couldn't have made it without your help' means
A. I couldn't have made it if you helped me.
B. I couldn't have made it if you had helped me.
C. I couldn't have made it if you hadn't helped me.
D. I couldn't have made it if you didn't help me.
2. She didn't stop her car because she didn't see the signal.
A. If she saw the signal, she would stop her car.
B. If she had seen the signal, she would stop her car.
C. If she had seen the signal, she would have stopped her car.
D. If she saw the signal, she would have stopped her car.
3. His flight was deplayed so he couldn't be here on time.
A. He would be here in time if his flight were not deplayed.
B. He would have been here in time if his flight hadn't been deplayed.
C. He would be here in time if his flight hadn't been deplayed.
D. He would have been here in time if his flight weren't deplayed.
4. Without your help, I couldn't overcome the problem.
A. If you don't help me, I can't overcome problem.
B. If you didn't help me, I couldn't overcome problem.
C. If you hadn't helped me, I couldn't overcome problem.
D. If you hadn't helped me, I couldn't have overcome problem.
1) They would be upset if i tell them what happened.
2) If you don't complain so much, you might be more popular.
3) If I don't revise thoroughly, I may fail my test.
4) May you work harder if you were better paid?
5) If someone enters the building, the alarm will go off.
1.tell
2.hadn't complain
3.don't revise
4.would work
5.enter, will go
complete the sentences with the correct form of the verbs in brackets
1 would you go to his party if he(invite)......invited...... you?
2 I(can/help)...could help............ you translate is text into French if we had a dictionar3 we (email).......would email.................her if we had her adderss
4 if i (know.).....knew....... the answer, I wouldn't need to ask
5 i'd probably buy a laptop if it (be).....were.............cheaper answer,
6 where would you live of you (have)........had............ the choice
7 if you(have)........had.................. 20 brothers and sisters,think how many birthday presents you(get).........would get........
8 if everyone (speak).....spoke............ the same langluage, do you yhing life(be)........would be....... better?
9 I'm sorry, I don't know.if (knom)....knew...theamswer,I (tell.....would tell..........you
Eo ôi dài ghê
1, would have visited
2, would have won
3, had arrived
4, had been
5, would have been
6, hadn't seen
7, would have fallen
8, would you have accepted
9, had had
10, had known
11, would have offer
12, wouldn't have stung
13, had realized
14, would have stopped
15, would have reached
16, wouldn't have lent
17, had sneezed
18, had put
19, couldn't have got
20, wouldn't have tried
21, had spoken
22, wouldn't have been
23, had known
24, had tried
25, wouldn't have got
26, wouldn't have put
27, had been
28, would have come
29, wouldn't have turned
30, had looked
31, would have captured
32, had tried
33, would have taken
34, would have saved
35, hadn't called
Đánh dấu V trước câu đúng,đánh dấu X trước câu sai và sửa lại cho đúng :
__X__1. Pollution can => could be reduced if we joined hands to prevent it.
__X__2. If farmers would => didn't make use of pesticide more wisely, the soil would not be poisoned.
__X__3. I won't believe it unless you showed => show me the evidence.
__X__4. Unless => If you don't tell me the trulh, i won't help you.
__X__5. If James is => were more outgoing, he would have more friends.
___T_6. I think the show would be successful if he were one of the organizers.
_X___7. If you paid more attention what i said, you didn't=> wouldn't make so many mistakes.
__X__8. If children are taught about environmental issues, attitudes towards => will toward pollution.
__X__9. You would be punished if you park => parked your car here.
__X__10. If you could win the compettion, we will have => would have a celebretion.