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lack? —It ________ be him. Mr. Black is much taller than that man.A.may B.must C.can’t D.mustn’t39.—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A.should B.might C.could D.would40.You ________ pay too much attention to protecting yourself if you plan to go abroad.A.mustn’t B.can’t C.shouldn’t D.needn’t【參考答案】一、選擇題1.D解析:D【詳解】句意:當(dāng)你參觀博物館時(shí),應(yīng)該注意一些說明,我們最好不違反它們。 must C.can’t。ve discussed every detail of this plan and have got everything ready. But still something ________ go wrong. We still have to be very careful.A.must B.should C.would D.may25.Never throw objects from the building. Even a small object ________ cause serious injuries, or death, when dropped from a great height.A.must B.should C.may D.need26.Most young people like shopping online because they ________ spend much time going from shop to shop.A.needn’t B.can’t C.mustn’t D.shouldn’t27.—In China, many parents plain that their children have to stay up late to do the homework. —Don’t worry. The government has realized the problem. I’m sure there ________ be good news soon.A.can B.should C.need D.must28.I think all the students love the weekends because, to them, they ________ get up early on Saturdays or Sundays.A.mustn’t B.don’t need C.needn’t D.can’t29.—Is it really necessary for me to go shopping with a mask on?—I’m afraid you ________ in public. It is not only to protect yourself but also to protect others.A.must B.should C.can D.need30.When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A.must B.may C.can D.need31.A hardworking man ________ bee a great scientist, but a great scientist ________ be a hardworking man.A.can’t。t D.mustn39。t B.can39。 has to12.I ________ hear you clearly. Would you please repeat it?A.mustn’t B.can’t C.needn’t D.shouldn’t13.— Mom, must I clean my room now?— No, you ________. You can do it after dinner.A.needn’t B.mustn’t C.shouldn’t D.can’t14.If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A.can’t B.mustn’t C.needn’t D.shouldn’t15.—Have you decided to take up teaching as career after graduation? —I ________ go abroad for further education instead. But it depends.A.must B.should C.may D.shall16.Please don39。 should C.should。 be against2.To my joy, we_________ go to the bank. Mary has lent us some money.A.shouldn’t B.needn’t C.couldn’t D.wouldn’t3.—Could I join you in the programme?—Sorry, you ________. You are too young.A.shouldn’t B.mustn’t C.can’t D.needn’t4.Hurry up, or we ________ miss