◎ 题干
—Would you like to go shopping with me this afternoon?
—I'd like to, but I'm afraid I ______. I have to write to my parents.
[     ]
A. can't
B. mustn't
C. needn't
D. may not
◎ 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“—Would you like to go shopping with me this afternoon? —I'd like to, but I'm afraid I ______. I have to write to my parents. [ ]A. can't B. mustn't C. …”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。