--Hello,I'd like to speak to John,please.--_____A:No,I'm Mary.B:This is Mary speaking.C:It's him here.D:This is him.
问题描述:
--Hello,I'd like to speak to John,please.
--_____
A:No,I'm Mary.
B:This is Mary speaking.
C:It's him here.
D:This is him.
答