问题补充：
---I am going to the supermarket to buy a quilt.
--- You can easily buy one on the Internet.
A. Why not?
B. Good idea!
C. Why bother?
D. By no means.
答案：
A. Why not?
B. Good idea!
(答案→)C. Why bother?
D. By no means.
解析： 交际用语.A. 为什么不 B. 好主意 C. 为什么要这么麻烦 D.决不.句意:我打算去超市买棉被.为什么这么麻烦?你可以容易的在网上买一套.故选C.
