--Must I renew the book now? --No you . You that before the deadline.A. mustn't; should

问题补充：

--Must I renew the book now?

--No, you . You that before the deadline.

A. mustn ; should do

B. needn’t; should have done

C. may not; should do

D. can ; should have done

答案：

A. mustn ; should do

B. needn’t; should have done

C. may not; should do

(答案→)D. can ; should have done

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