◎ 题干
Jim is unhappy, do you know_____?
A.what he happened
B.what the matter is with him.
C.what happened to him
D.what did he happened
◎ 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“Jim is unhappy, do you know_____? A.what he happenedB.what the matter is with him.C.what happened to himD.what did he happened…”主要考查了你对  【宾语从句】  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。