The teacher gave back his homework, so he _ do it again. [ ]A. mus

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The teacher gave back his homework, so he      _   do it again.    [     ]
A. must
B. had to
C. needed
D. might

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举一反三

—____I come in?
—Come  in ,please.
    [     ]
A. May
B. Must
C. Need
D. Have to

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—_____you play the piano?
—No. But I can play the violin.    [     ]
A. Can
B. May
C. Must
D. Should

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—_     you get some milk for me?
—Sure.  [     ]
A. May
B. Must
C. Should
D. Could

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— ___   I have your name, please?
—Yes. Michael. M-I-C-H-A-E-L.    [     ]
A. Must
B. Will
C. May
D. Need

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Anna hasn"t come to school Today .I think she   __    be ill.  [     ]
A. can
B. has to
C. may
D. should

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