◎ 题干
—May I go swimming now?  
—No, you _____. You must finish your homework first.   

[     ]

A. mustn't
B. may not
C. couldn't
D. needn't

◎ 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“—May I go swimming now? — No, you ______. You must finish your homework first. [ ]A. mustn't B. may not C. couldn't D. needn't …”主要考查了你对  【情态动词】  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。