---Where’s that report?-I brought it to you you were in Mr. Black’s office yesterday.

发布时间：2020-08-17 11:27:10

---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

网友回答

A. if
(答案→)B. when
C. because
D. before
解析：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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