◎ 题干
I want to know _______.

A. what is he doing
B. is what he doing
C. what he is doing
D. he is doing what
◎ 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“I want to know _______. [ ]A. what is he doing B. is what he doing C. what he is doing D. he is doing what …”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。