When I last saw them, the police had chased the robbers down Columbus Street.A、w

游客2024-01-02  30

问题 When I last saw them, the police had chased the robbers down Columbus Street.

选项 A、were chasing
B、was chasing
C、chased
D、were on a chase

答案 A

解析 在由when引导的时间状语从句的句子中,主句和从句的谓语动词的动作是有先后次序的:如状语从句的时态是一般过去时,主句应用过去时,本句表示过去正在做的动作所以应用过去进行时,又因主语the police即状语中的them,所以谓语为复数,答案应为A。
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