Did she do some reading yesterday和was she doing somereading yesterday的区别

问题描述:

Did she do some reading yesterday和was she doing somereading yesterday的区别

第一句是过去时,第二句是过去进行时.
一般过去时表示在过去某个时间发生的动作或存在的状态,而过去进行时则表示在过去某一时刻或某段时间正在进行的动作