---Whatwereyourparentsdoingateightlastnight?---Myfathe...

问题详情：

 --- What were your parents doing at eight last night?

--- My father was cooking while my mother         .

A. watched TV    B. were watching TV   C. is watching TV   D. was watching TV

【回答】

D

知识点：动词时态

题型：选择题