◎ 题干
—Must I be home before eight o'clock, Mum?  
—No, you _____. But you have to come back before ten o'clock.    
[     ]
A. needn't
B. can't
C. mustn't 
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—Must I be home before eight o'clock, Mum?—No, you _____. But you have to come back before ten o'clock. [ ]A. needn't B. can't C. mustn'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。