题目内容

—Can you watch TV ________ school nights?

—Yes, but I have to be _______ bed ________ ten o’clock.

A.in; on; by

B.on; on; in

C.on, in; by

D.in; in; at

 

【答案】

C

【解析】此题重点考查介词的固定用法。On school nights;in bed;at ten o’clock。

 

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