问题 选择题

The poor girl       across the road       a car knocked her down.

A.walked; while

B.walked; since

C.was walking; until

D.was walking; when

答案

答案:D

根据时间状语从句,从句的动作发生在主句动作之中,主句用进行时,而从句用一般过去时,故选D    

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