"Do you want to have coffee or tea ?""Oh,____."

题目

"Do you want to have coffee or tea ?""Oh,____."
A.either does well
B.either will do
C.each is good
D.each will be fine
求教：如何分析这道题?

答案

B
首先两者之中的一个是either,排除C,D
其次,do可以这样使用,可以当作习语来记
例如
How much does it cost?
300 dollars will do.