问题
选择题
---Where’s that report?
---I brought it to you ________ you were in Mr. Black’s office yesterday.
A．if
B．when
C．because
D．before
答案
B。
该空表示“当……的时候”，因此应填when引导时间状语从句。
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---Where’s that report?
---I brought it to you ________ you were in Mr. Black’s office yesterday.
A．if
B．when
C．because
D．before
B。
该空表示“当……的时候”，因此应填when引导时间状语从句。