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