情态动词练习题 1.—Dad，can I go to the movies tonight? —Sure，but you __ come back home before 9 o’clock. A. can B. must C. may D. might 2. Drunk driving is against the law now. It ______ be forbidden. A. may B. must C. can D. might 3.— I think the man over there must be Bob. —It _______ be him. He has ______ to Australia. A. can’t, gone B. can’t, been C. may not, been D. mustn’t, gone 4. The work is too hard for him. He__________ finish it on time. A. can't B. mustn't C. shouldn't D. needn't 5. This dictionary______ Tom's. It has Ann's name on it A. might be B. may he C. can't be D. must 6.—Whose T - shirt is this? —It______ be John' s. It’s ______ small for him. A. can't; much too B. can't; too much C. mustn't; much too D. mustn't; too much 7.—May I go out now, Dad? —No. You __ let your mother know first. A. can B. may C. need D. must 8.— _______ we clean the classroom at once? — No, you _______. You _______ clean it after school. A. Must; needn’t; may B. Must; mustn’t; can. C. Shall; can’t; must D. Need; mustn’t; may 9. You look quite tired. You’d better ______ a good rest. A. stop to have B. stop having C. to stop to have D. to stop having 10. —Can I skate on the lake now? —No, you ______. It‘s dangerous. A. can’t B. mustn’t C. needn’t D. won’t 11. You _____ lose your way if you walk alone in the mountains at night. A. may B. need C. should D. ought to 12. —Peter doesn’t mind lending you his camera. —He __________. I’ve already borrowed one. A. needn’t B. can’t C. mustn’t D. shouldn’t 13. —I can’t stop smoking, doctor. — For your health, I’m afraid you ______. A. may B. can C. have to D. need 14. — Good morning. I've got an appointment with Ms King in her office. —Morning. You _______be Mr Jones. This way, please. A. will B. must C. can D. might 15. ----Dad, the bread is not enough. I am still hungry. _____I have something more? —But there’s nothing in the fridge now. A. Must B. Need C. Will D. Can 16. —Oil is everywhere in this store, so you ____know smoking is forbidden here. —I'm sorry. A. can B. may C. must Ｄ. ｗill 17.—Where's David? —He ____be in the playground because he is fond of playing basketball. A. will B. may C. can't D. mustn't 18. —Look, Sue is over there. —That ____ be her. She is in Canada now. A. mustn’t B. can’t C. needn’t D. won’t 19. —Must I go through the radiation (辐射) check when I come back from Japan at the airport these days? —Yes, you ______. A. can B. may C. might D. must 20. —Where's my music disc? I can't see it! —You'd better _____ the disc carefully in your bedroom. A. look up B. look through C. look for D. look over 21. —Look at the man in the classroom! Is he Mr. White? —No, it __________be him. He's eating in the dining hall. A. can't B. mustn't C. may not D. needn't 22. —Do we have to go to school this afternoon? —Yes, you ________. A. must B. can C. need D. will 23. There are no customers in the hotel. It ______ have the friendliest service. A. can’t B. must C. may D. needn’t 24. As we’re students, we __________ obey the school rules. A. can B. may C. must D. could 25.—That must be Mr. John. —No, it ________ be him! I saw him off at the airport half an hour ago. A. may not B. mustn’t C. can’t D. needn’t 26. —Congratulations! You've got the first prize in the English Contest. —_____ it be true? It's unbelievable! A. May B. Should C. Must D. Can 27. You _______worry about me. I’m fine. A. can’t B. mustn’t C. needn’t D won’t 28.—Whose schoolbag is this? —It ___________ be Mary’s. It has her name on it. A. can B. may C. will D. must 29. —May we go home now ? —No, you____. You ____ to go home until 5 o’clock. A. mustn’t; are allowed B. don’t have to; are supposed C. needn’t; aren‘t allowed D. can’t; aren't supposed 30. —Mr. Wang _____ be on the playground, I think. —He ______ be on the playground. I saw him in the office just now. A. may; may not B. can; mustn’t C. must; couldn’t D. may; can’t 本文来源：https://www.wddqw.com/doc/6a285f4b02020740be1e9b51.html