Question

—Did you see the traffic accident on East Street this morning?
— Yes, I _________ shopping with my friend Tina at the time.
A. have gone       B. am going                C. was going

Answer 1

C

此题重点考查过去进行时的基本结构和基本用法，表示在过去的某一时间正在进行的动作或存在的某种状态，其构成是was/were+doing。