We arrived at work in the morning and found that somebody__________ into the officeduring the night.

2023-05-26

A.broke
B.had broken
C.has broken
D.was breaking

参考答案:B

句意为早上上班时我们发现夜里有人闯入了办公室。break动作发生在found动作之前。所以应用过去完成时态,故选B。

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