◎ 题干
— You look very tired . _____ at all last night?
— No, not really. I'm tired out now.

A. Do you sleep
B. Were you sleeping
C. Did you sleep
D. Had you slept
◎ 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“— You look very tired _____ at all last night? — No, not really. I'm tired out now. [ ]A. Do you sleep B. Were you sleeping C. Did you sleep D. Had you s…”主要考查了你对  【一般过去时】  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。