—I drove to Zhuhai for the air show last week.—Is that you had a few days off?A. whyB. wh

问题补充：

—I drove to Zhuhai for the air show last week.

—Is that you had a few days off?

A. why

B. when

C. that

D. where

答案：

(答案→)A. why

B. when

C. that

D. where

解析：why引导的从句作表语，同时why在从句中作原因状语。