Question

【题目】—Hello！Is that Mr. Liu speaking?

—Yes.________

A. I am. B. Who are you?

C. I'm speaking. D. Who's that?

Answer 1

【答案】D

【解析】句意：---喂！是刘先生吗？----是的，是谁？打电话时询问对方是谁一般用Is that…？（你是…？）或Who is that？（你是谁？）；回答时通常说，Yes, this is …(speaking).（是的，我是…。）结合句意和语境可知选D。