1,Known,going to see

2,will bought 

3.will buy

4.will saw,going 

5,won't be 

1. comes
2. find
3. lived
4. arrived
5. will phone
6. would give
7. would
8. can go
9. will have

10. stop

11. were
12. had spoken

13. had listened – would have performed
14. comes – will have

Gạch chân dưới đáp án đúng:
1. If she (come / comes / came / had come) late again, she'll lose her job.
2. I'll let you know if I (find / finds / found / had found) out what's happening.
3. If we (live / lived / would live / had lived) in a town, life would be better.
4. I'm sure he wouldn't mind if we (arrive / arriving / arrived / had arrived) early.
5. We (will phone / would phone / phoned / had phoned) you if we have time.
6. If I won the lottery, I (gave / had given / will give / would give) you half the money.
7. It (will / would / can / may) be a pity if she married Fred.
8. If I'm free on Saturday, I (to go / could go / went / can go) to the mountains.
9. She (will has / had / will have / have) a nervous breakdown if she goes on like this.
10. I know I'll feel better if I (will stop / stopped / stop / had stopped) smoking.
11. If I (am / were / will be / had been) you, I would help him.
12. I could have understood him if he (speaks / spoke / had spoken / would speak) more slowly.
13. He didn't listen to the teacher. If he (listens / listened / has listened / had listened) carefully, he (will performed / would perform / would have performed / had performed) well in the examination.
14. He's waiting for his mother to come back from Chicago. If his mother (come / comes / will come / came) home, he?? đề thiếu

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

Bài 3: Chọn đáp án đúng.

1. I would have visited you before if there _____ quite a lot of people in your house.

A. hadn't B. hadn't been C. wouldn't be D. wasn't

2. If you had caught the bus, you _____ late for work.

A. wouldn't have been B. would have been

C. wouldn’t be D. would be

3. If I _____, I would express my feelings.

A. were asked B. would ask

C. had been asked D. asked

4. If _____ as I told her, she would have succeeded.

A. she has done B. she had done

C. she does D. she did

5. Will you be angry if I _____ your pocket dictionary?

A. stole B. have stolen C. were to steal D. steal

6. You made a mistake by telling her a lie. It _____ better if you _____ to her.

A. would have been / hadn't lied B. would be / didn't lie

C. will be / don't lie D. would be / hadn't lied

7. John would be taking a great risk if he _____ his money in that business.

A. would invest B. invested C. had invested D. invests

8. She wouldn't have given them all that money if we _____ her to.

A. wouldn’t advise B. won't advise

C. hadn't advised D. didn't advise

9. If the tree hadn't been so high, he _____ it up to take his kite down.

A. could have climbed B. climb

C. is climbing D. climbed

10. If the wall weren't so high, he _____ it up to take his ball down.

A. climbed B. could climb C. is climbing D. climb

11. If I _____ her phone number, I _____ her last night

A. had known / could have phoned B. knew / would have phoned

C. know / can phone D. knew / could phone

12. If he ______ the truth, the police wouldn’t arrest him.

A. tells B. told C. had told D. would tell

13. If you press that button what _____?

A. would happen B. would have happened

C. will happen D. happen

14. She says if she _____ that the traffic lights were red she _____.

A. had realized / would stop B. realized / could have stopped

C. has realized / stopped D. had realized / would have stopped

15. I am very thin. I think, if I _____ smoking, I might get fat.

A. stop B. had stopped C. will stop D. stopped

16. If I _____ that yesterday, I _____ them.

A. had discovered / would inform

B. had discovered / would have informed

C. had discovered / could inform

D. discovered / can inform

17. If you _______ to the course regularly, they ________ a certificate last year.

A. go / gave B. go / give

C. had gone / would have given D. went / would give

18. I think he is not at home. If he _____ in, he ______ the phone.

A. was / answered B. were / would answer

C. were / would have answered D.had been / would have answered

19. If I ______ in London now, I could visit British Museum.

A. were B. had been C. have been D. would be

20. If Columbus _______ money from Queen Isabella, he _______ across the Atlantic.

A. do not receive / could not sail

B. had not received / might not have sailed

C. did not receive / might not have sailed

D. would not receive / might not sail

1. I would have visited you before if there _____ quite a lot of people in your house.

A. hadn't B. hadn't been C. wouldn't be D. wasn't

2. If you had caught the bus, you _____ late for work.

A. wouldn't have been B. would have been

C. wouldn’t be D. would be

3. If I _____, I would express my feelings.

A. were asked B. would ask

C. had been asked D. asked

4. If _____ as I told her, she would have succeeded.

A. she has done B. she had done

C. she does D. she did

5. Will you be angry if I _____ your pocket dictionary?

A. stole B. have stolen C. were to steal D. steal

6. You made a mistake by telling her a lie. It _____ better if you _____ to her.

A. would have been / hadn't lied B. would be / didn't lie

C. will be / don't lie D. would be / hadn't lied

7. John would be taking a great risk if he _____ his money in that business.

A. would invest B. invested C. had invested D. invests

8. She wouldn't have given them all that money if we _____ her to.

A. wouldn’t advise B. won't advise

C. hadn't advised D. didn't advise

9. If the tree hadn't been so high, he _____ it up to take his kite down.

A. could have climbed B. climb

C. is climbing D. climbed

10. If the wall weren't so high, he _____ it up to take his ball down.

A. climbed B. could climb C. is climbing D. climb

11. If I _____ her phone number, I _____ her last night

A. had known / could have phoned B. knew / would have phoned

C. know / can phone D. knew / could phone

12. If he ______ the truth, the police wouldn’t arrest him.

A. tells B. told C. had told D. would tell

13. If you press that button what _____?

A. would happen B. would have happened

C. will happen D. happen

14. She says if she _____ that the traffic lights were red she _____.

A. had realized / would stop B. realized / could have stopped

C. has realized / stopped D. had realized / would have stopped

15. I am very thin. I think, if I _____ smoking, I might get fat.

A. stop B. had stopped C. will stop D. stopped

16. If I _____ that yesterday, I _____ them.

A. had discovered / would inform

B. had discovered / would have informed

C. had discovered / could inform

D. discovered / can inform

17. If you _______ to the course regularly, they ________ a certificate last year.

A. go / gave B. go / give

C. had gone / would have given D. went / would give

18. I think he is not at home. If he _____ in, he ______ the phone.

A. was / answered B. were / would answer

C. were / would have answered D.had been / would have answered

19. If I ______ in London now, I could visit British Museum.

A. were B. had been C. have been D. would be

20. If Columbus _______ money from Queen Isabella, he _______ across the Atlantic.

A. do not receive / could not sail

B. had not received / might not have sailed

C. did not receive / might not have sailed

D. would not receive / might not sail

1. If I (know) ___had known___ that you were ill, I (go) ____would have gone____ to see you.
2. If she'd had enough money, she (buy) ____would have bought____ a car.
3. I (buy) ____will____ a car If you lend me some money.
4. I (see) ____would have seen___ him if I (go) __had gone______ to the party last night.
5. We could have gone out if the weather (not be) ___hadn't been____ so bad.
6. If the book (not be) ____isn't___ expensive, I'll buy it.
7. You would be very surprised if he (return) ___returned_____ .
8. I'll go out if it (not rain) ____doesn't rain_____ .
9. They wouldn't come to the party if you (not invite) ___didn't invite____ them.
10. What _____would__ you (do) ____do____ if you (be) ___were____ him?
11. If that hat costs much, I (buy) ____will______ a small one.
12. If you (drive) ____drove____ more carefully, you (have) _wouldn't have_____ so much accidents.
13. If I (make) ____make____ that mistake again, my teacher (get) ____will be____ angry with me.
14. If I (spoke) ____spoke____ English, my job (be) ____would be___ a lot easier.
15. If he (go) ___had gone___ to London yesterday, he (meet) ___would have met_____ his old friend.

1. If I (know) _____had known______ that you were ill, I (go) _____would have gone_____ to see you.

2. If she'd had some money, she (buy)____would have bought_____ to see you.

3. I (buy)__will___ a car If you lend me some money.

4. I (see) ___would have seen____ him if I (go) ____had gone____ to the party last night.

5. We could have gone out if the weather (not be) ______hadn't been______ so bad.

6. If the book (not be) ____is not_____ expensive, I'll buy it.

7. You would be surprised if he (return)________returned_______.

8. I'll go out if it (not rain) _______doesn't rain_______.

9. They wouldn't come to the party if you (not invite) _____didn't invite_____ them.

10. What __would__ you (do) ____do____ if you (be) __were__ him?

11. If that hat costs much, I (buy) ___will buy___ a small one.

12. If you (drive) _____drove____ more carefully, you (not, have) _______wouldn't have_______ so many accidents.

13. If I (make) _____make____ that mistake again, my teacher (be) ___will be___ angry with me.

14. If I spoke English, my job (be) ___would be___ a lot easier.

15. If he (go) __had gone___ to London yesterday, he (meet) __would have met__ his old friend.

Complete the conditionals sentence:

1. If I (know) _____had known______ that you were ill, I (go) _____would have gone_____ to see you.

2. If she'd had some money, she (buy)____would have bought_____ to see you.

3. I (buy)__will___ a car If you lend me some money.

4. I (see) ___would have seen____ him if I (go) ____had gone____ to the party last night.

5. We could have gone out if the weather (not be) ______hadn't been______ so bad.

6. If the book (not be) ____is not_____ expensive, I'll buy it.

7. You would be surprised if he (return)________returned_______.

8. I'll go out if it (not rain) _______doesn't rain_______.

9. They wouldn't come to the party if you (not invite) _____didn't invite_____ them.

10. What __would__ you (do) ____do____ if you (be) __were__ him?

11. If that hat costs much, I (buy) ___will buy___ a small one.

12. If you (drive) _____drove____ more carefully, you (not, have) _______wouldn't have_______ so many accidents.

13. If I (make) _____make____ that mistake again, my teacher (be) ___will be___ angry with me.

14. If I spoke English, my job (be) ___would be___ a lot easier.

15. If he (go) __had gone___ to London yesterday, he (meet) __would have met__ his old friend.

16. If I (be) _____were____ in your place, I (accept) ____would accept____ Mr. Anderson' s invitation.

17. If I (win) ____won____ a big prize in the lottery, I 'd give up my job.

18. If I (be) ____were_____ you, I (tell) _____would tell____ the truth.

19. I was busy. If I (have) _____had had_____ free time, I (go) ___would have gone___ to the cinema with you.

20. - Why didn't you attend the meeting?

- Oh, I did not know! If I (know) ____had known_____ I (come) ___would have come___ there.

Complete the conditionals sentence:

1. If I (know)…had known……. that you were ill, I (go)…would have gone…… to see you.

2. If she’d had enough money, She (buy) would have bought……… a car.

3. I (buy) …will buy………….. a car If you lend me some money.

4. I (see) …could have seen……… him if I (go) …had gone…. to the party last night.

5. We could have gone out if the weather (not be)…hadn’t been………………… so bad.

6. If the book (not be )……isn’t……… expensive, I’ll buy it.

7. You would be very surprised if he (return)…returned……………

8. I’ll go out if it (not rain)……doesn’t rain………….

9. They wouldn’t come to the party if you (not invite) …didn’t invite…………..them

10.What ……would………… you (do) …do………. if you (be) were…….. him.

11. If that hat costs much, I (buy) ___WILL BUY___ a small one.

12. If you (drive) ____HAD DRIVEN_____ more carefully, you (not, have) _____WOULD HAVE HAD_________ so many accidents.

13. If I (make) _____MAKE____ that mistake again, my teacher (be) ___WILL BE___ angry with me.

14. If I spoke English, my job (be) ___WOULD BE___ a lot esier.

15. If he (go) ___HAD GONE__ to London yesterday, he (meet) __WOULD HAVE MET__ his old friend.

16. If I (be) ______WERE___ in your place, I (accept) ___WOULD ACCEPT_____ Mr. Anderson' s invitation.

17. If I (win) ___WON_____ a big prize in the lottery, I 'd give up my job.

18. If I (be) _____WERE____ you, I (tell) ______WOULD TELL___ the truth.

19. I was busy. If I (have) ___HAD HAD_______ free time, I (go) ___WOULD HAVE GONE___ to the cinema with you.

20. - Why didn't you attend the meeting?

- Oh, I did not know! If I (know) ___HAD KNOWN______ I (come) ____WOULD HAVE COME__ there.

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.