-Must we clean the classroom now?-No ,you .A．mustB．needn’tC．aren’tD．mustn’t 题目和参考答案——青夏教育精英家教网—

题目内容

—Must we clean the classroom now?
—No ,you _______.

A．must

B．needn’t

C．aren’t

D．mustn’t

B解析:
以must开头的一般疑问句其否定性回答要用needn’t。

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