问题 选择题

—  Must I return the book this week?

— No, you ____. You can _    it for 20 days.

A.mustn't: keep

B.needn't; borrow

C.needn't; keep

D.mustn't; borrow

答案

C

must回答与延续性动词的用法。Must开头的一般疑问句的否定回答用“……needn’t”, 由答语for短语指一段时间,故用延续性动词,borrow为短暂性动词,要换成延续性动词keep。

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