◎ 题干
I'm afraid Mr.Harding ______ see you now.He's busy.
A.can't B.mustn't
C.shouldn't D.needn'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“I'm afraid Mr.Harding ______ see you now.He's busy.A.can'tB.mustn'tC.shouldn'tD.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。