基　本　型
选用can, could, may, must, shall, should, will, would, can’t, mustn’t, needn’t
或have to 填空:
1. There is air around us, thought we ________ see it.
2. Your mother is getting better and better. You _______ worry about her.
3. You _______ play football in the busy street.
4. “_______ it be true ?.” “Yes. It _______ be true indeed.”
5. Tom _______ come to the party tonight, but I’m not sure.
6. _______ you please fetch me some water for me?
7. Young trees ________ be planted in spring.
8. “Must we hand in our exercise books today?”
“Yes, you ______.” “No, you ________.”
9. “May I take this magazine out of the reading-room?”
“Yes, you _______.” “No, you _______.”
10. Please speak a little louder so that I _______ hear you.
提高型
1. If you are not careful in the street, a car ______ hit you.
A. canB. mayC. wouldD. must
2. –May I watch TV now, mum?
-No, you _____. You _____ do your homework first.
A. don’t; mustB. don’t; can’tC. can’t; must D. can’t; can
3. –Mr. John, we must hand in our work today, ______?
-No, you ______. But you must bring it to school tomorrow.
A. needn’t we; mustn’tB. mustn’t we; needn’t
C. mustn’t you; mustn’tD. needn’t we; needn’t
4. He isn’t in the school. I think he ______ be ill.(1999广东)
A. canB. shallC. must
5. Children ______ play on the road or in the street. It is dangerous.
A. may notB. mustn’tC. couldn’tD. needn’t
6. Even the top students in our class can’t work out this problem,
so it ____be very difficult.(1999上海)
A. mayB. mustC. canD. need
7. –Can you ride a bike-No, I _____.
A. may notB. can’tC. needn’tD. mustn’t
8. –Must I return the book this morning?
-No, you _____. But you ______ return it before supper.
A. needn’t; mustB. mustn’t; canC. mustn’t; mayD. can’t; need
9. You ____ to go and see the doctor right now.(1997湖南)
A. mustB. shouldC. haveD. will
10. Don’t play with the knife. You ______ hurt yourself. (山西)
A. mayB. shouldC. have toD. need
综合型
1. What _____ I do for you, madam?
A. mayB. mustC. canD. will
2. You’re made the same mistake again. How _____ you be so careless!
A. shallB. mayC. canD. must
Peter _____ come with us this afternoon, but he isn’t very sure yet.
A. shallB. mayC. canD. must
Don’t worry! The news _____ be true.
A. may notB. mustn’tC. will notD. needn’t
The traffic _____ stop when the lights are red in the street.
A. can’tB. don’t have toC. mustn’tD. must
–Look! It _____ be the new headmaster.
-It _____ be him. He went to Beijing yesterday.
A. can; mustn’tB. can; can’t C. must; can’tD. must; may
______ I close the window? It’s so cold here.
A. MustB. WillC. NeedD. Shall
You _____ return the bike now. You can keep it till tomorrow if you like.
A. can’tB. mustn’tC. needn’tD. may not
You _____ yourself about money.
A. needn’t worryB. needn’t to worry
C. don’t need worryD. needn’t be worry
Many people want to see you. _____ they wait here or outside?
A. DoB. WillC. NeedD. Shall
____ I ask your name, please?
 A. WillB. ShallC. MayD. Must
You _____ do it even if you don’t want to.
 A. can’tB. mustn’tC. have toD. needn’t
I _____ like someone to take me to the museum.
 A. willB. wouldC. shallD. need
Look, what you have done! You _____ more careful.
A. may beB. had toC. should beD. should
The girl in white must be a nurse, _____?
 A. isn’t sheB. mustn’t she C. may not sheD. didn’t she
It’s a fine day today. You _____ take a raincoat with you.
 A. mustn’tB. don’t needC. needn’tD. can’t
You _____ wash your hands before meals. It is good for your health. (2000广州)
 A. mayB. canC. have toD. must
“Can you sing the song in English?”“No, I _____.”
 A. may notB. mustn’tC. needn’tD. can’t
–Will you stay for supper?
 -Sorry, I _____. My sister is coming to see me.
A. mustn’tB. can’tC. needn’tD. won’t
–Must I return this book this afternoon?
No, you _____. But you _____ return it before supper.
A. mustn’t; canB. can’t; need
C. needn’t; mustD. mustn’t; may
-_____ the girl be sent to hospital at once?
 -No, she needn’t. She’ll be all right soon.
A. CanB. MayC. MustD. Will