-was your summer vcation?It was pretty good.A. HowB. WhereC. WhatD. When

问题补充：

---- was your summer vcation? ----- It was pretty good.

A. How

B. Where

C. What

D. When

答案：

(答案→)A. How

B. Where

C. What

D. When

解析：此题考查询问的是状况，故用how来提问。