--Could I call you by thefirst name?

问题描述:

--Could I call you by thefirst name?
--Yes,you ___
A will B could C may 为什么答案选C呢?

Could I call you by thefirst name?
==May I call you by thefirst name?
--Yes,you ___
A will B could C may
could you .是一种委婉的问法.不能用could 回答.