I first met Lily five years ago. She as a nurse in a hospital at the time. A. was working

问题补充：

I first met Lily five years ago. She as a nurse in a hospital at the time.

A. was working

B. has worked

C. had been working

D. had worked

答案：

(答案→)A. was working

B. has worked

C. had been working

D. had worked

解析：句意：五年前我第一次遇到莉莉，当时她正在一家医院做护士。因为是五年前遇到她的时候正发生的事情，所以用过去进行时，选A。