问题 选择题

—_____ I come back before 6 o'clock?

—No, you _____. But you _____ be back later than 7 o'clock. [ ]

A. Need; must; must

B. May; mustn't; can't

C. Can; can't; can't

D. Must; needn't; can't

答案

答案:D

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单项选择题