Unless there had been a heavy storm, the climbers will not have died.
(A) Unless
(B) Had been
(C) Heavy
(D) Will
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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. we do not visit the museum because we have no time
A. If we have time, we will visit the museum B. if we had time, we would visit the museum
C. if we had time, we would have visited the museum D. if we had time, we will have visited the museum
2. ..........i have time, I will go with you
a. if B. unless C. so D. so that
3. If i .........who took your umberella, I would tell you
A. know B. knew C . known D. had know
4. If the automobile had not been in invented years ago,.......for basic transporttation now
a. what we would use b,what would we use c, what we will have used d, what we will be using
5, if the police had not saved me, i ..........at that time
a. will die b. would die c, will have died d, would have died
6. if i had time, i........and help you
a. will come b, would come c, will have come d, would have come
7, if I ......the truth, i would tell you
a, will know b, know c, hvae known d, knew
8, I'll return Bob' pen to him the next time if I .....him
a, will see b, see c, will have see d, have seen
9. I' d have told you if I .......the book
a, would have been b, should have seen c, had seen d,saw
10, If I..............more time , I would not have said such nonsense
a, am b, have been c, will be d,had been
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 a,b,c or d that best completes the sentence.
1. I would have crashed the car _________.
a. unless you warned me.
b. in case you would make.
c. if you would make.
d. but for your warning.
2. _______ heavy traffic we would not have been late for the train.
a. If
b. If only
c. Supposed
d. had found
3. She had to have the operation or she________.
a. dies
b. will die
c. would die
d. would have died
4. _______ to the music after 10 pm, you should turn the volume down or use an earphone.
a. If you are listening
b. Unless you listen
c. Provided you won't listen
d. Otherwise you listen
5. If Mary _____ so long on the computer last night, her eyes _____ red now.
a. did not worked / do not get
b. were not working / did not get
c. hadn't been working / wouldn't get
d. hadn't worked / wouldn't have got
1. D - but for your warning
2. C - supposed
3. D - would have died
4. A - If you are listening
5. C - hadn't worked / wouldn't have got
1 we did not visit the museum because we had no time
a if we have time , we will visit the museum
b if we had time , we would visit the museum
c if we had had time , we would have visited the museum
d if we had had time , we will visit the museum
2 he looked frightened as if he ................
a ghost a sees b is seeing c has seen d had seen
3 ........... resigned , we would have been forced to sack him
a had he not b had not he c he had not d he not had
4 if you ................ me about the bad service , we’d have eaten there
a did not tell b would not have told c had not told d had told
5 the teacher was absent today, so class was canceled . if she ........... absent again tomorrow , class ........ tomorrow,too
a is/will cancel b is / will be canceled c was / would be canceled d was/ would cancel
6 if you .................. to my advice in the first place , you............... in this mess right now
a listen/will be b had listened / would not have been c will listened / would not be d had listened/ would not be
7 if i had been absent from class yesterday , i ............. the math test
a would missed b would have missed c will miss d miss
8 if you ............... here earlier , you ............. her
a had come / would have met b come / meet c came / would meet d comes will meet
9 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
10 if i were , i would work harder
a you would rather not work so hard
b you should work harder
c you should work with me
d do not work so hard
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.
1. They___________ for 3 hours when the storm suddenly broke.
A. had been running B. have been running
C. are running D. will be running
2. I___________ come to the conclusion that nowadays nobody cares about anything.
| A. will | B. had | C. do | D. have |
3. | I assumed you ___________ paying for the repairs until the end of last year. | |||
| A. have been | B. was been | C. are being | D. had been |
4. | ___________ get tired of answering the same questions every day? | |||
| A. Have you ever | B. Had you ever | C. Do you ever | D. Are you ever |
5. She___________ working on that manuscript for 2 years now. |
| |||
| A. will be | B. has been | C. had been | D. is |
6. | I___________ there once a long time ago and___________ back since. |
| ||
| A. went/ have not been | B. go/ am not |
| |
| C. have gone/ was |
| D. was going/ had not been |
7. The students___________ by Mrs. Linda. However, this week they___________ by Mr. Mike.
are usually taught/ are being taught
usually teach/ are teaching
have usually been taught/ have been teaching
were usually teaching/ are teaching
8. In the past the trip___________ very rough and often dangerous, but things___________ a great deal in the last hundred and fifty years.
A. was/ have changed B. is/ change
C. had been/ will change D. has been/ changed
9. Now you___________ from New York to Los Angeles in a matter of hours.
A. are flying B. would fly C. will fly D. can fly
10. When Carol___________ last night, I__________ my favorite show on television.
A. was calling/ watched B. called/ have watched
C. called/ was watching D. had called/ watched
11. By this time next summer, you ___________ your studies.
A. completes B. will complete
C. are completing D. will have completed
12. Right now, Jim___________ the newspaper and Kathy___________ dinner.
A. reads/ has cooked B. is reading/ is cooking
C. has read/ was cooking D. read/ will be cooking
Last night at this time, they __________ the same thing. She_________ and he the newspaper.
are doing/ is cooking/ is reading
were doing/ was cooking/ was reading
was doing/ has cooked/ is reading
had done/ was cooking/read
When I_________ home last night, I_________ that Jane________ a beautiful candlelight dinner.
had arrived/ discovered/ prepared
was arriving/ had discovered/ was preparing
have arrived/ was discovering/ had prepared
arrived/ discovered/ was preparing
Sam___________ to change a light bulb when he___________ and___________.
A. was trying/ slipped/ fell B. tried/ was slipping/ falling
C. had been trying / slipped D. has tried/ slips/ falls
16. Yesterday, I___________ for work late because I___________ to set my alarm.
A. had left/ forgot B. was leaving/ was forgetting
C. left/ had forgot D. had been leaving/ would forget
17. By the time we________ to the train station, Susan_________ for us for more than two hours.
A. will get/ has been waiting B. got/ was waiting
C. got/ had been waiting D. get/ will wait
I___________ for this company for more than thirty years, and I intend to stay here until I
___________ next year.
A. am working/ will retire B. am going to work/ am retiring
| C. work/ am going to retire | D. have been working/ retire | |
19. | My mother always the first___________ up and the last___________ to bed. | ||
| A. getting/ going | B. to get/ going | C. getting/ to go D. to get/ to go |
20. | I___________ you last night after dinner, but you___________ there. Where___________ you? | ||
| A. was calling/ are not/ are | B. called/ were not/ were | |
| C. had called/ had not been/ were |
Đáp án D => would
câu điều kiện loại 3: If S had been PII, S would have PII