--Hello! 2268-6142,Who's that? --( )LingMing

问题描述:

--Hello! 2268-6142,Who's that? --( )LingMing
--Hello! 2268-6142,Who's that?
--( )LingMing
A.That's LingMing B.This is Ling
应选哪个?为什么?

B
电话对话用 this