一道初三英语的选择填空The traffic accident ____ when I _____ past the supermarket.A)happened,was walking B)happening,walkedC) happened,am walking D)happen,was walked为什么选A 我也是选A 可是我书上的正确答案是选C

问题描述:

一道初三英语的选择填空
The traffic accident ____ when I _____ past the supermarket.
A)happened,was walking B)happening,walked
C) happened,am walking D)happen,was walked
为什么选A
我也是选A 可是我书上的正确答案是选C

A

a

答案也是可以错的 我确定选A 前后时态要一致