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Hedoeshishomeworkbeforegoingtobed

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问题详情:

Hedoeshishomeworkbeforegoingtobed

He does his homework before going to bed ________ school nights.

A.for   B.in  C.at   D.on

【回答】

D 点拨:指在具体的某个晚上用介词on。

知识点:介词和介词短语

题型:选择题

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