I was listening to pop songs while my parents dinner yesterday.A. were cookingB. cookedC.

问题补充：

I was listening to pop songs while my parents dinner yesterday.

A. were cooking

B. cooked

C. have cooked

D. had cooked

答案：

(答案→)A. were cooking

B. cooked

C. have cooked

D. had cooked

解析：句意：当我父母昨天晚上做饭的时候，我在听流行音乐。while 引导的时间状语从句叙述过去的动作时，从句常用过去进行时。故选A。