The mother didn't know who the glass because it happened when she was out.A.breakB.has brokenC.

题目简介

The mother didn't know who the glass because it happened when she was out.A.breakB.has brokenC.

题目详情

The mother didn't know who      the glass because it happened when she was out.
A.breakB.has brokenC.had brokenD.breaks
题型:单选题难度:中档来源:不详

答案

C

试题分析:考查时态。句意:妈妈不知道是谁打破了杯子,因为这是在她外出的时候发生的。杯子坏了是在妈妈知道之前,而本句的妈妈知道都使用了过去时,故打破杯子使用过去完成时。故C正确。
点评:时态的考查要和语义语境相结合,同时要抓住句中的关键的时间状语

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