【答案解析】[听力原文]15-17
W: Jack, I'd like to have a conference with you.
M: Sure, but I'm not free until after lunch. Can we meet then?
W: O.K. Let's make it around two o' clock this afternoon.
M: Fine. I'll come to your office either at two o' clock or earlier if I can.
W: All right. The sooner the better.
M: O.K. I'll try to make it as soon as possible.