—_______ you swim?—Yes, but I"m not a good swimmer.[ ]A. Can

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—_______ you swim?
—Yes, but I"m not a good swimmer.[     ]
A. Can
B. May
C. Need
D. Must

答案

举一反三

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

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—____ you turn down your radio,please?
—Yes,l can.
[     ]
A. May
B. Need
C. Must
D. Can

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I_____swim, but I can"t skate. [ ]
A. must
B. need
C. can
D. should

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You _______ return the book now. You can keep it till next week. [ ]
A. should
B. mustn"t
C. needn"t
D. may

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Tom, would you please _______ the box? It"s for your sister. [ ]
A. not to open
B. don"t open
C. not open
D. to not open

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