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1 . According to the new traffic rules, people ________ wear a helmet when riding an e-bike.
A.might | B.may | C.can | D.must |
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2 . —Where is my Chinese book? I remember I put it here yesterday.
—You________ have put it in the wrong place. (根据句意填空)
—You
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3 . A: ________ (我必须完成) my homework now?
B: No, you needn’t. You________ (可以做) it tomorrow. (根据汉语提示完成句子)
B: No, you needn’t. You
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4 . —Can I smoke here?
—No. Go to the smoking section, if you ____.
—No. Go to the smoking section, if you ____.
A.must | B.can | C.shall | D.may |
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5 . —— I can’t get through to the general manager’s office anyhow.
—— The line is busy. Someone _____ the telephone.
—— The line is busy. Someone _____ the telephone.
A.must use | B.uses | C.must have been using | D.must be using |
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