题目内容

— Mom, must I finish my homework now?
— No, you ______. You may have supper first.
A. mustn’t      B. needn’t      C. can’t
C
选B。考查情态动词的用法。对must引导的一般疑问句，否定回答时常用No, …needn’t.由句意：－妈妈，我现在必须完成家庭作业？－不，你不需要。你可以先吃饭。故选B。
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