—Danny, I can"t stop playing computer games.—For your health, I"m afraid you

题型：同步题难度：来源：

—Danny, I can"t stop playing computer games.
—For your health, I"m afraid you                 .[     ]
A. can
B. may
C. could
D. have to

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举一反三

—Listen! Is Tom singing in the classroom?
—No. It ____ be Tom. He has gone to Paris.[     ]
A. may not
B. needn"t
C. can"t
D. might

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—_____ I swim in that river?
—No, you ______. It"s dangerous to swim in it.[     ]
A. Must; can"t
B. can"t; may not
C. May; mustn"t
D. Must; needn"t

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—May I swim in the lake, Dad?
—No, you _______. Look! Here is a notice "No swimming!"[     ]
A. may not
B. mightn"t
C. mustn"t
D. needn"t

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—Could I borrow your dictionary?
—Of course you ______.[     ]
A. can
B. must
C. should
D. will

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选用合适的情态动词填空

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