| 1. 难度：中等 | |
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—Must I stay at home, Mum? —No, you ______. A．needn't B．mustn't C．don't D．may not
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| 2. 难度：中等 | |
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—Who is the man over there? Is it Mr Li? —No, it ______ be him. Mr Li has gone to America. A．mustn't B．may not C．can't D．needn't
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| 3. 难度：中等 | |
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To make our city more beautiful, rubbish ______ into the river. A．needn't be thrown B．mustn't be thrown C．can't throw D．mustn’t throw
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| 4. 难度：中等 | |
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You_____ to the meeting this afternoon if you have something important to do. A．needn’t to come B．don’t need come C．don’t need coming D．needn’t come
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| 5. 难度：中等 | |
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You’d better _____late again. A．don‘t B．not be C．not being D．won’t be
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| 6. 难度：中等 | |
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You _______ smoke in the hospital. A．needn’t B．oughtn’t to C．ought to not D．may not
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| 7. 难度：中等 | |
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—Another cup of coffee? —No, thanks. I _____ be off. Mary is waiting for me. A．can B．may C．must D．might
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| 8. 难度：中等 | |
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—I’m a little tired. Let’s go to the zoo by taxi. —We take a taxi. It’s not far from here. A．can’t B．mustn’t C．couldn’t D．needn’t
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| 9. 难度：中等 | |
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—Susan has bought a large house with a swimming pool. —It ______ be very expensive. I never even dream about it. A．must B．might C．can’t D．shouldn’t
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| 10. 难度：中等 | |
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—Listen! Is Professor Johnson giving a report in the hall? —No, it be him. He has gone to Japan. A．needn’t B．may not C．mustn’t D．can’t
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| 11. 难度：中等 | |
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—Can you play the piano? —Yes, I _______. I often practice it on weekends. A．needn’t B．need C．can’t D．can
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| 12. 难度：中等 | |
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—May I watch TV for a while？ —No, you _______. You have to finish your homework first. A．shouldn’t B．needn’t C．mustn’t D．won’t
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| 13. 难度：中等 | |
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—______ you swim? —Yes, but I’m not a good swimmer. A．Can B．May C．Need D．Must
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| 14. 难度：中等 | |
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—Excuse me, where are we going to have our class meeting? —I’m not sure. Ask our monitor, please. He know. A．can B．may C．need D．shall
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| 15. 难度：中等 | |
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We hope that as many people as possible ________ join us for the charity show tomorrow. A．need B．can C．must D．should
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| 16. 难度：中等 | |
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—Let’s go to the concert tonight, Michael! —Sorry, I _______. I have to help my mother with the housework A．mustn’t B．may not C．needn’t D．can’t
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| 17. 难度：中等 | |
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If the traffic light is red, you ________ cross the road. It’s very dangerous. A．don’t B．mustn’t C．needn’t D．wouldn’t
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| 18. 难度：中等 | |
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—I have spent too much time playing computer games these days. —I think so. You _____ stop, for your study and your health. A．will B．must C．can D．may
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| 19. 难度：中等 | |
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We ________ fight against pollution. A．may B．should C．mustn’t D．needn’t
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| 20. 难度：中等 | |
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—I can’t give up smoking, doctor. —For your health, I’m afraid you ________. A．may B．can C．have to D．must
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| 21. 难度：中等 | |
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He did not regret saying what he did but felt that he it differently. A．could express B．would express C．could have expressed D．must have expressed
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| 22. 难度：中等 | |
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Mr. White _____ at 8:30 for the meeting, but he didn't show up. A．should have arrived B．should arrive C．should have had arrived D．should be arriving
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| 23. 难度：中等 | |
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—She looks very happy. She ______ have passed the exam. —I guess so. It’s not difficult after all. A．should B．could C．must D．might
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| 24. 难度：中等 | |
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—Catherine, I have cleaned the room for you. —Thanks. You______it. I could manage it myself. A．needn't do B．needn't have done C．mustn't do D．shouldn't have done
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| 25. 难度：中等 | |
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—It’s the office! So you_____know eating is not allowed here. —Oh, sorry. A．must B．will C．may D．need
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| 26. 难度：中等 | |
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Some people who don’t like to talk much are not necessarily shy; they _______ just be quiet people. A．must B．may C．should D．would
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| 27. 难度：中等 | |
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一What does the sign over there read? 一No person ______ smoke or carry a lighted cigarette，cigar or pipe in this area． A．will B．may C．shall D．must
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| 28. 难度：中等 | |
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Although the climate in our city is good，yet the temperature________fall to 14 centigrade below freezing point in winter. A．should B．shall C．can D．may
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| 29. 难度：中等 | |
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—Can I know your plans for this summer holiday? —Mm...of course！But I'm just thinking about this.I________be a volunteer social worker. A．might B．should C．must D．need
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| 30. 难度：中等 | |
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—Mum, would you please buy me a MP5 player? —If you can help do the dishes the whole vacation，you have one as a reward• A．must B．need C．would D．shall
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| 31. 难度：中等 | |
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When we worked in the same firm several years ago, we _____ often go to the cinema together. A．would B．will C．shall D．could
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| 32. 难度：中等 | |
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You get a new bicycle as a reward for doing well in the following final exam. A．must B．will C．shall D．should
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| 33. 难度：中等 | |
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The young man has made so much noise that he________not have been allowed to attend the concert. A．could B．must C．should D．need
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| 34. 难度：中等 | |
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—I wonder if I ________ smoke here. —No，you ________.You see,there is a “NO SMOKING”sign here. A．may；needn't B．must；can't C．shall；won't D．can；mustn't
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| 35. 难度：中等 | |
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The children___ play football on the road. A．can't B．can C．mustn't D．must
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