【题目】What does the man offer to do?
A.Wait on line.B.Take a message.C.Call back in thirty minutes.
在线课程【答案】B
【解析】
【原文】
W: Hello, may I speak to Ms Sullivan, please?
M: She is not here right now. Can I take a message?
W: Actually, I can just call back. When will she be available?
M: In about thirty minutes.