-shall we paint the walls?-I prefer white. It makes us feel calm and peaceful.A. H

问题补充：

---- shall we paint the walls?

---- I prefer white. It makes us feel calm and peaceful.

A. How

B. How often

C. Why

D. What colour

答案：

A. How

B. How often

C. Why

(答案→)D. What colour

解析：本题考查疑问词的用法。答语的信息是颜色，因此用what colour提问。句意：——我们把墙将粉刷成什么颜色？——我喜欢白色。它让我们感到镇静和安宁。