◎ 题干
You         buy the TV guide for next week have already bought a copy.  
[     ]
A. mustn't          
B. needn't to  
C. don't have to      
D. can'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“You buy the TV guide for next week have already bought a copy. [ ]A. mustn't B. needn't to C. don't have toD. can't…”主要考查了你对  【情态动词】【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。