—David, is that man your Chinese teacher?—It _______ be him. He"s having a meeti

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—David, is that man your Chinese teacher?
—It _______ be him. He"s having a meeting. [ ]
A. mustn"t
B. can"t
C. needn"t
D. won"t

答案

举一反三

—Could I have a look at the photo of your family, Sam?
—Of course, you _______. [ ]
A. need
B. can
C. could
D. must

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The students _____ listen to the teachers carefully in class. [ ]
A. must
B. may
C. can
D. would

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—______ you play tennis, Tom?
—Yes, I can. [ ]
A. Can
B. May
C. Must
D. Need

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— May I go out and play, Mum?
— No, you ____. You"ve got a lot of work to do. [ ]
A. needn"t
B. mustn"t
C. wouldn"t
D. won"t

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—Sally, may I borrow your notebook?
—Sure, but you ______ return it tomorrow. [ ]
A. need
B. must
C. can
D. may

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