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modal verbs ( defective verbs ) ( can , could , may , might , shall , should , will , would , must , ought to )
Barbara will eat the cake
The cake will be eaten by Barbara.
You ought to send the package by registered mail
The package ought to be sent by registered mail
They cannot hold the metting in that room
The meeting cannot be held in that room
Will many people attend the lecture ?
Will the lecture be attended ?
You must do it right now
It must be done right now.
NObody can measure the depth of this river
The depth of this river can not be measured .
People can't take reference books home
Reference books home can't be taken
How much will they pay you ?
How much will you be paid?
They shouldn't build the resort on such a beautiful beach
The resort shouldn't be built on such a beautiful beach
We ought to clarify the problem of environment pollutiion
The problem of environment pollution ought to be clarified
They may organize a new group last week
A new group may be organized last week
Đáp án: D
Giải thích: đây là câu điều kiện loại 1, ta dựa vào vế còn lại để xác định điều này (ought to V).
Dịch: Nếu bạn uống hết chỗ nước cam trong cái hộp đó, bạn phải ra ngoài mua thêm.
1.I....could.....(can/could) swim when i was 10
2.You....ought....(ought/should) to study harder if you want to get good marks
3.It's going to rain.You.....ought to....(ought to/can) take an umbrella with you
4.The building is burning.We....must....(can/must) get out of it now
5.I ....can't....(can't/ couldn't) dance now but i could dance very well when i was 7
6.You....should...(should/ought to) not stay up late.It's harmful to your health
7.He....ought not to....(ought not to/can’t) drive too fast.It’s dangerous
8.I....must.....(can’t/must) finish my assignment today or i will be punished
1. I will …………….. do my homework tonight.(must, have to, should)
2. She ………………. go alone yesterday. ( must, had to, can)
3. You …………… go to school on time. (should, ought, can)
4. You ………………watch TV all day. (ought to, ought not to, have to)
5. I’m sorry , you ………………..smoke here. (mustn’t, don’t have to, should)
16. A
17. D
18. a
19. A
20. B
21. D
22. D
23. A
24. A
25. C
26. A
27. C
28. D
29. D
30. B
31. C
16. You ______ tell Sandra anything about our story. She ______ keep a secret.
A. had better not / cannot B. needn’t / would rather not
C. ought to / would not D. do not have to / should not
17. I am not really sure where Beverly is. She ______ in the living room, or perhaps she is in the backyard.
A. could not sit B. cannot sit C. must be sitting D. might be sitting
18. With luck, tomorrow ______ be a sunny day.
A. could B. must C. would rather D. needn’t
19. Dane ______ the book we borrowed from the library. It was on the table, but now it has gone.
A. must have returned B. should have returned
C. cannot have returned D. needn’t have returned
20. You ______ translate that. I understand what you say.
A. wouldn’t B. needn’t C. mustn’t D. couldn’t
21. You ______ be right but I am not sure so I am going back to check anyway.
A. can B. must C. should D. might
22. You ______ the air pressure in your tires if you do not want to get a flat tire on your trip.
A. should be checked B. do not have to check
C. mustn’t check D. ought to check
23. The computer does not work. It ______ during transportation.
A. must have been damaged B. should have been damaged
C. can be damaging D. will damage
24. Mary decided not to join us for dinner. She ______ stay at work to finish the marketing report.
A. had to B. must C. can D. may
25. You ______ book the tickets for the play in advance because they sell out quickly.
A. could B. mustn’t C. have to D. may
26. You can’t mean that! You ______
A. must be joking B. can be joking C. can joke D. have to joke
27. If Daisy has not come home yet, she ______ for us at the school gate.
A. can’t be waiting B. would be waiting C. must still be waiting D. will be waiting
28. It ______ Sam who called and did not leave a message on the answering machine. I am not sure.
A. must be B. might be C. must have been D. might have been
29. Margaret promised to meet us at the entrance to the theater tomorrow night. She ______ for us when we get there.
A. mustn’t be waiting B. could not be waiting
C. ought to be waiting D. might have been waiting
30. What do you have in mind? - I ______ prefer a long dress.
A. will B. would C. can D. must
31. She ______ a lot after his husband’s accident. That was why her eyes were so red and swollen.
A. must be crying B. can have cried C. must have cried D. will have cried
Đáp án là A.