◎ 题干
— Must we sweep the floor right now?
— No, you ________.You can do it later

[     ]

A. mustn't
B. don't
C. don't have to
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Must we sweep the floor right now?— No, you ________.You can do it later [ ]A. mustn't B. don't C. don't have to …”主要考查了你对  【助动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。