【高中英语】we arrived at work in the morning and foundWe arrived at work in the morning and found that somebody ________ into the office during the night.A,brokeB.had brokenC.has brokenD.was breaking选B.break不是短暂性动词吗,为什么

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【高中英语】we arrived at work in the morning and foundWe arrived at work in the morning and found that somebody ________ into the office during the night.A,brokeB.had brokenC.has brokenD.was breaking选B.break不是短暂性动词吗,为什么
【高中英语】we arrived at work in the morning and found
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
选B.
break不是短暂性动词吗,为什么可以用完成时?

【高中英语】we arrived at work in the morning and foundWe arrived at work in the morning and found that somebody ________ into the office during the night.A,brokeB.had brokenC.has brokenD.was breaking选B.break不是短暂性动词吗,为什么
选B.完成时不只是表示持续性的动词,实际上几乎所有动作都是短暂的,比如 beat, take...等等.完成时主要表明动作已经完成并产生了影响或后果.如果只用动词的过去时,那么只是简单的陈述一个发生在过去的事.

这题选B,用了过去完成时.因为主句“我们来上班的时候” (we arrived at work...) 已经是过去时,而"有人破门而入办公室...“是在“我们上班的时候”之前的事,所以过去完成.