题目内容
We arrived at work in the morning and found that somebody ________ into the office during the night.
A.broke
B.had broken
C.has broken
D.was breaking
B
解析:根据主句谓语的时态及题意可知,“有人在夜里闯入办公室”发生在“我们早晨到达办公室”之前,所以用过去完成时,答案为B项。
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