◎ 题干
You ______ write letters to your cousin. You can chat with her online.

[     ]

A. can't      
B. needn't    
C. shouldn't     
D. 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“You ______ write letters to your cousin. You can chat with her online. [ ]A. can't B. needn't C. shouldn't D. 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。