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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) If you had checked (to check) the car, it (not/to break) would not have broken down in the middle of the desert.
2) If it had not rained(not/to rain), the children (to play) would have played outside.
3) If my parents had not been (not/to be) so tired, they would have watched(to watch) the film on TV.
4) If she had bought (to buy) a new hard disk, she would not have lost (not/to lose) all data.
5) If we had used(to use) the town map, we would not have got (not/to get) lost.
6) If Tom had eaten(to eat) more salad, he (not/to catch) would not have caught a cold.
7) If the police had not stopped(not/to stop) me, I would have reached (to reach) you in time.
8) If his older brother had not driven(not/to drive) so fast, he would not have crashed(not/to crash) into the other car.
9) If Fred had not cheated (not/to cheat) at the test, his teacher would not have(not/to phone) his father.
10) If I had not switched off(not/to switch off) the radio, I would have known (to know) about the second goal.
2) If it had not rained, the children would have played outside.
3) If my parents had not been so tired, they would have watched the film on TV.
4) If she had bought a new hard disk, she would not have lost all data.
5) If we had used the town map, we would not have got lost.
6) If Tom had eaten more salad, he would not have caught a cold.
7) If the police had not stopped me, I would have reached you in time.
8) If his older brother had not driven so fast, he would not have crashed into the other car.
9) If Fred had not cheated at the test, his teacher would not have phoned his father.
10) If I had not switched off the radio, I would have known about the second goal.
Gạch chân dưới đáp án đúng:
1. If that hat costs much, I (would have bought / will buy / bought / would buy) a small one.
2. If you (drive / drove / had driven / driven) more carefully, you wouldn't have had so many accidents.
3. If I (make / makes / made / had made) this mistake again, my teacher will get angry with me.
4. If I spoke English, my job (was / were / will be / would be) a lot easier.
5. If he (goes / went / had gone / would go) to London yesterday, he (met / would meet / had met / would have met) his old friend.
6. I will lend them some money if they (ask / will ask / asked / had asked) me.
7. If we had known who he was, we (would have invited / have invited / will invite / would invite) him to speak at our meeting.
8. My dog will bark if it (hear / hears / heard / had heard) any strange sound.
9. If I (had / had had / will have / have) enough money, I would buy a house.
10. They (won't let / not let / wouldn't let / hadn't let) you in if you came late.
11. If you (not go / don't go / hadn't gone / didn't go) away, I'll send for a policeman.
12. If I (were / am / be / was) in your place, I would accept Mr.Anderson's invitation.
13. If I (win / had won / won / winning) a big prize in a lottery, I'd give up my job.
14. If I (is / are / was / were) you, I (will tell / told / would tell / would have told) the truth.
15. I was busy. If I (have / had / had had / have had) free time. I (would go / will go / would have gone / go) to the cinema with you.
16. Why didn't you attend the meeting?
Oh, I did not know. If I (know / knew / had known / known) I (would come / would have come / will come / had come) there.
17. What (would / will / did / had) we do if they do not come tomorrow?
18. If I had enough time now, I (would write / write / will write / wrote) to my parents.
19. It's too bad Helen isn't here. If she (is / was / were / are) here, she (will know/ knows / would know / would have known) what to do.
20. If I don't eat breakfast tomorrow morning, I (will get / got / would get / had got) hungry during class.
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
1) If we send an invitation, our friends will come to our party.
2) He won't understand you if you whisper .
3) They won't survive in the desert if they don't take extra water with them.
4) If you press CTRL + s, you will save the file.
5) You will cross the Channel if you fly from Paris to London.
6) Fred will answer the phone if his wife has a bath.
7) If Claire wears this dress at the party, our guests won't stay any longer.
8) If I touch this snake, my girlfriend won't scream
9) She will forget to pick you up if you don't phone her.
10) I will remember you if you give me a photo.
1. If I were you, I would get that job
2. If I had free time now, I would sleep
3. If she were a man, she might fell better
4. If today were my birthday, I could get a lot of presents.
5. If the globals temperature didn't rise, many severe disasters might not be occured
1. If I (be)...were........ you, I (get)............would get......... that job.
2. If I (have) ........had....... free time now, I (sleep) ..............would sleep..........
3 If she (be)......were......... a man, she (fell)...........feel..... better.
4. If today (be ) .....were ............... my birthday, I ( get )..would get............ a lot of presents.
5. If the global temperature (not rise).....did not rise.........., many severe disasters (not occur)........would occur.........
6. If the environment (be not)........were not............. polluted, people's health (be) ...........would be..... better.
7. If you..........helped.............. (to help) your grandma, I....would do........(to do) the shopping.
8. Andrew.........would water...... (to water) the flowers if he..stayed.........(to stay) at home.
9. If she ......had......... (to have) 5 pounds more, she ........would buy..... (to buy) herself this T- shirt.
10. If they .....offered..............(to offer) me the job, I .....would take...(to take) it.
11. You.........would have.....(to have) summer holidays from June till August if you....lived............ ( to live) in the USA.
12. We.....would sell.............( to sell) the bike for 20 Euros if Ron.....repaired...............(to repair) it.
13. If you .........used............... ( to use) a pencil, the drawing....would be.............(to be) perfect.
14. The children..........would be............(to be) happy if he.......taught........(to teach) them English.
15. If Ireen...........visited.............(to visit) us, we ..........would go.............(to go) out tonight.
16. They ...............would come........(to come) again if he......planed............(to plan) a second stay.
1) If we.....send......(to send) an invitation, our friends....will come.......(to come) to our party.
2) He.....won't understand.....(not/to understand) you if you (to whisper).whisper
3) They....won't survice.......(not/to survive) in the desert if they.....do not take......(not/to take) extra water with them.
4) If you.....press......(to press) CTRL + s, you...will save........(to save) the file.
5) You.......will cross....(to cross) the Channel if you....fly.......(to fly) from Paris to London.
6) Fred....will answer.......(to answer) the phone if his wife (to have)has a bath.
7) If Claire.....wear......(to wear) this dress at the party, our guests....won't stay.......(not/to stay) any longer.
8) If I......touch.....(to touch) this snake, my girlfriend....won't scream.......(not/to scream).
9) She...will forget.....(to forget) to pick you up if you (not/to phone)do not phone her.
10) I.....will remember ......(to remember) you if you.... give......(to give) me a photo.
1) If we..send..(to send) an invitation, our friends..will come...(to come) to our party.
2) He...will not understand....(not/to understand) you if you whisper (to whisper).
3) They will not survive(not/to survive) in the desert if they..do not take/don't take.(not/to take) extra water with them.
4) If you..press.(to press) CTRL + s, you will save(to save) the file.
5) You.......will cross....(to cross) the Channel if you....fly.......(to fly) from Paris to London.
6) Fred.....will answer ......(to answer) the phone if his wife (to have)has a bath.
7) If Claire....wears ..(to wear) this dress at the party, our guests......will not stay/won't stay.....(not/to stay) any longer.
8) If I....touch.......(to touch) this snake, my girlfriend....will not scream/won't scream.......(not/to scream).
9) She....will forget.......(to forget) to pick you up if you do not phone/don't phone(not/to phone) her.
10) I........will remember ...(to remember) you if you.....give......(to give) me a photo.
a) If I _________won________ (win) the lottery, I would buy a desert island.
b) If Rachel doesn’t stop eating junk food, she ________will get___________ (get) fat.
c) If you ___________didn't insist___________ (not insist) on taking a bath, we wouldn’t miss the beginning of the play.
d) I ____________won't go away_____________ (not go away) if you don’t admit you are wrong.
e) Mary will take the job if they _______let________ (let) her work at home.
f) If they __________don't hurry up___________ (not / hurry up), we will miss the bus.
g) We will have to leave the house if we ________don't pay__________ (not pay) the rent.
h) She wouldn’t accuse you if Jack ______didn't lie________ (not lie) about the robbery
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