◎ 题干
—That must be Mr. John.
—No, it ______ be him. I saw him off at the airport half an hour ago.
[     ]
A. may not
B. mustn't
C. can'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“—That must be Mr. John. —No, it ______ be him. I saw him off at the airport half an hour ago.[ ]A. may not B. mustn't C. can'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。