题目内容
【题目】She saw them ____ football on the playground when she was on her way to the classroom.
A.played
B.to play
C.playing
D.are playing
【答案】C
【解析】句意:当她走在去教室的路上时,她看见了他们正在在操场上踢足球。句中有when引导的一个时间状语从句,故前面的句中用过去进行时表示看见某人正在做某事,故选C
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