1.she—————— her hairstyle in her hometown before she came to chongqing for a better job.

问题描述:

1.she—————— her hairstyle in her hometown before she came to chongqing for a better job.
2.the train ____ when he got to the station.
第一题为什么是过去式changed呢?第二题就是过去完成时had lleft呢?
能解释一下为什么第一个就是过去时呢?

changed 因为她到重庆之前换了发型如:We ate our breakfast before we go to school 我们吃了早餐才去上学但是2.the train ____ when he got to the station.当他到火车站时,火车已经开走了,就是had left,重点在于"...