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
答案：B
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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 |
答案：B