— You look pale. Did you sleep well？— No. It was already midnight ____ I finishe

题干

— You look pale. Did you sleep well？
— No. It was already midnight ____ I finished my homework.

A．before

B．when

C．that

D．since

上一题下一题 0.85难度单项选择更新时间:2013-06-07 08:25:35

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