题目内容：

--You are always having a cold.Why not take some exercise?--______
A.For what?B.What's to be done next C.How to do it?D.I've tried ,but it didn't work.

优质解答

D
这是语境题目.翻译是：
——你总是感冒.为何不做些运动呢?
——我试过了,但没什么作用.