---Must we clean the classroom now? ---No, you . A. must B. needn’t C. aren’t——青夏教育精英家教网—

摘要： ---Must we clean the classroom now? ---No, you . A. must B. needn’t C. aren’t

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1—Must we clean the classroom now?

—No ,you _______.

A. must B. needn’t C. aren’t D. mustn’t

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