be able to能够
20180133.—I heard the fire spread very quickly through the hotel, but everyone____ get out.
—I can't believe it！
[if !supportLists]A. [endif]had to B. could C. was able to D. would
Can可能（肯定不表推测），会，能
201201 30. --Is Jack coming? 会
--I'm not sure. He_____ be here at any moment.
A. must B. will C. should D. can
201539. It is usually quite warm in my hometown in March, but it_______ be rather cold sometimes. 会
[if !supportLists]A. [endif]must B. can C. should D. need
201735.--Have you got the results of the exam? 能
--No. All we do now is to wait.
[if !supportLists]A. [endif]must B. can C. may D. could
Can’t不可能，不能
201604- 39. - Is Wilson on duty in class today?
一It____be him. It's his turn tomorrow.
[if !supportLists]A. [endif]must B. can't C.should D.needn't
201439. –Is that Kate’s car?
--It ______be hers. She has just gone for a meeting.
[if !supportLists]A. [endif]can’t B. should C. mustn’t D. may
201133.-Look, Sue is over there.
-That _______be her. She is in Canada now.
[if !supportLists]A. [endif]mustn’t B. can’t C. neither D. won’t
不能201301 32.一Could you let me drive your car?
一Sorry, you _____.
A. can’t B. couldn’t C. needn’t D. shouldn’t
May可能（推测），可以
20160138.— Have you decided which senior high school to choose?
—Not yet. I __________ go to the Sunshine School.
A. should B. need C. may D. must
201704-35. —Could I call you by the first name?
—Yes, you .
[if !supportLists]A. [endif]will B. must C. may D. Might
Might可能
20180435. —I thought you ______ like something to read, so I have brought you some books.
—Thanks a lot.
[if !supportLists]A. [endif]may B. might C. could D. must
20140138.------ What are you going to do this afternoon ?
------- I’m not sure . I _____ go to the library .
A . will B. must C. might D. have to
Must一定（表推测不变否），必须，硬要（偏要），
猜测201639---I still haven’t found my pet dog.
---I’m sorry to hear that. You______ be very sad.
[if !supportLists]A. [endif]can B.should C.must D.will
201235.－You _______ be happy with the strong public support you’ve received.
－Yes,you’re right.I’m really excited.
[if !supportLists]A. [endif]may B.can C.must D.need
必须201404-39.---_____you leave so soon?
-Yes. I have to catch my plane. A. Can B. Would C. Should D. Must
201204-38. - Virus flu is such a terrible disease these days.
- Yes, it is. We _ be more careful.
A. must B. may C. can D. need
201101 37.– Shall we play it one more time?
-- I’m afraid not. I _____ be off for my papers.
[if !supportLists]A. [endif]can B. may C. must D. will
201835. ---Must you go?
---Yes, I'm afraid I really ________.
[if !supportLists]A. [endif]may B. should C. must D. can
Needn’t不必
201304-34 -May I do the rest of the work tomorrow ?
-Yes, of course . You __ finish it today .
A. mustn’t B. needn’t C .can’t D. shouldn’t
Should理应（might 把握小，should可能）
20170133.— When can I come for the photos? I need them tomorrow.
—They _______ be ready by 12:00.
[if !supportLists]A. [endif]can B. should C. might D. need
Shouldn’t应该（表责任、义务）
20190139----Sir, you ____ be sitting in the waiting room. It is for women and children only.
A shouldn’t B can’t C won’t D needn’t
Will
201334. ---Honey, stay home before I return.
---I _______, mum.
[if !supportLists]A. [endif]must B. can C. will D. should
Wouldn’t不愿意（表意愿），表拒绝
201904 35
---My parents ____ allow me to go swimming in the river without them.
--- I think so. That’s too dangerous.
A shouldn’t B wouldn’t C mustn’t D needn’t
Had better
20150135. --Can I leave my car outside at night?
--You ________ better not.
A.should B. would C. could D. had
注意：
表推测：can 不肯，may 不问，must 肯定不否问
即：肯定句用must 或may, might (但不用can /could )
must ~important, need ~necessary, should ~right
