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have? Something big? — Well, it ______ be big — that’s not important. ( 陜西 2020) A. mustn’t B. needn’t C. can’t D. won’t 10. — What do you think we can do for our aged parents? — You ______ do anything except to be with them and be yourself. (重慶 2020) A. don’t have to B. oughtn’t to C. mustn’t D. can’t 11. The boss has given everyone a special holiday, so we ______ go to work tomorrow. (上海 2020春 ) A. can’t B. mustn’t C. needn’t D. shouldn’t 12. Some aspects of a pilot’s job ______ be boring, and pilots often ______ work at inconvenient hours. (湖南 2020) A. can。 have to B. may。 can C. have to。 may D. ought to。 must 13. It is usually warm in my hometown in March, but it ____be rather cold sometimes. A. must B. can C. should D. would 14. You ______ be hungry already you had lunch only two hours ago! A. wouldn’t B. can’t C. mustn ’t D. needn’t 15. John promised his doctor he ______ not smoke. And he has never smoked ever since. A. might B. should C. could D. would 16. What a pity! Considering his ability and experience, he ______ better. A. need have done B. must have done C. can have done D. might have done 17. Liza ______ well not want to go on the trip she hates traveling. A. will B. can C. must D. may 18. She ______ have left school, for her bike is still here. A. can’t B. wouldn’t C. shouldn’t D. needn’t 19. — I can’t find my purse anywhere. — You ______ have lost it while shopping. A. may B. can C. should D. would 20. — I’m sorry. I _______ at you the other day. — Fet it. I was a bit out of control myself. A. shouldn’t shout B. shouldn’t have shouted C. mustn’t shout D. mustn’t have shouted