—Must I finish my homework before I go h...

—Must I finish my homework before I go home?

—No, you ________. But you ________ finish it before tomorrow.

A. mustn’t, must

B. needn’t, must

C. needn’t, mustn’t

B 【解析】试题分析：句意：-我必须在回家之前完成我的家庭作业吗？-不，你不必。但你必须在明天之前完成它。must，必须，一定。mustn’t禁止，不允许。对must开头的一般问句进行否定回答，常用needn’t，或don’t have to，而不用mustn’t。所以选B。考点：考查情态动词。

考点分析：

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