Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
1.Some UFO sightings.....easily.No one is able to explain them easily.
a.can't be explained
b.shouldn't be explained
c.must be explained
d.needn't be explained
2.A child.....everything he or she wants.
a.must be given
b.shouldn't be given
c.mustn't be given
d.can be given
![](https://rs.olm.vn/images/avt/0.png?1311)
1.I've just seen David with a shovel in his hand. He.....in the garden right now.
a.may be working
b.must be working
c.should work
d.is working
2.Modern equipment.....long time ago, but better late than never.
a.should have import
b.might have been imported
c.must have been imported
d.should have been imported
3.Is the man you saw yesterday Bill's father? It.....Bill's father because he went to Europe two days ago.
a.can't have been
b.couldn't be
c.may not have been
d.must have been
![](https://rs.olm.vn/images/avt/0.png?1311)
1. I would have visited you before if there _____ quite a lot of people in your
house.
A. hasn't
B. hasn'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 / hasn't lied
B. would be / didn't lie
C. will be / don't lie
D. would be / hasn't lied
7. John would be taking a great risk if he _____ his money in that business.
A. would invest
B. Conc
C. had involved
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 hasn'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
10 câu còn lại bạn tự luyện nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
1. He is unreliable. what he says___ be belived
1.A cannot B. must not C. may not D. might not
2. I was reading the book last night before I went to bed. I never took it out of this room. It___ be lying around here somewhere. Where __it be?
A. might- needn't B. can-should C. shoudn't-may D. must can
3. When you have a small child in the house, you___leave small objects lying around. SUch objects___ be swallowed, causing serious injury or even death
A. should-must B. should not- might C. needn't -may D. mustn't- can't
4. Jenny's engagement ring was precious. It ___ have cost a fortune
A. must B. should C. can D. needn't
5. I___ be at the meeting by 10:00 I will probably ___ take a taxi if I want to be on time
A. must- have to B. may- must C. should- needn't D. mustn't- shouldn't
6. You____ forget to pay the rent tomorrow. The landlord is very stict about paying on time
A. needn't B. mustn't C/ do not have to D. may not
7. I am not deaf. You__ shout
A. must B. mustn't C. need D. needn't
8. The lamp_____ be broken. Maybe the light bulb just burned out
A. should not B. might not C. must have been D. should have been
9. It is a stop secret. You___tell anyone about it
A. Mustn't B. needn't C. mightn't D won't
10. We have plenty of time for doing the work. We __ be hurried
A. needn't B. shouldn't C. mustn't D. mayn't
11. You ___ touch that switch, whatvever you do
A. mustn't B. needn't C. won't D. wouldn't
2.Frank's wallet is lying on the coffee table.He.....it here last night.
a.must have left
b.should have left
c.must be leaving
d.needn't leave
3.Jeanette did very badly on the exam. She.....harder.
a.must have studied
b.could have studied
c.should have studied
d.must studied