◎ 题干
—Do you know ________ this time yesterday?
—Sorry, I don't know.
[     ]
A. what she is doing
B. what was she doing
C. what she was doing
◎ 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“—Do you know ________ this time yesterday?—Sorry, I don't know. [ ]A. what she is doingB. what was she doingC. what she was doing …”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。