Thegirlfelloffthewoodenbridge

发布时间：2020-07-27 21:00:54

The girl fell off the wooden bridge when she ________ river. Luckily for her, she was saved by a passer-by.A.was crossingB.had crossedC.crossedD.had been crossing

网友回答

A解析“过河时掉下去了”，用过去进行时表示“在做某事时”另一件事发生了。
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