---Why not take a short rest at home today?
--- .
A. You’re friendly.
B. Have a good time.
C. You’re wele.
D. That’s a good idea.
网友回答
A. You’re friendly.
B. Have a good time.
C. You’re wele.
(答案→)D. That’s a good idea.
解析：why not+动词原形意思是问什么不怎样，表示的是一种建议。其肯定性回答常用that’s a good idea。