—Have you cooked for your parents?—Yes of course.A. neverB. everC. alwaysD. Yet

问题补充：

—Have you cooked for your parents?

—Yes, of course.

A. never

B. ever

C. always

D. Yet

答案：

A. never

(答案→)B. ever

C. always

D. Yet

解析：本题的含义是你曾今为你的父母做过饭吗？ever表示曾今的含义，可用于完成时，与本题的句意相符，故本题选B。