题目内容
—Can you watch TV ________ school nights?
—Yes, but I have to be _______ bed ________ ten o’clock.
—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 |
C
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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