A、20 minutes. B、13 minutes. C、15 minutes. D、30 minutes. C数字题。对话中女士说她的表慢了20分钟，男士说他总是把他的表拨快15分钟，女士觉得这是个好办法，于是决定将她的表拨快30分钟。因此答案为C。

W: May I come in?
M: Come in, please. Do you know what time it is?
W: It’s 8:20. I am very sorry to be late again. And I am also sorry to disturb you and others.
M: All right, what’s your excuse this time? Don’t tell me your alarm didn’t go off or your watch stopped. I don’t wanna hear it!
W: Excuse me, sir. I hit the rush hour. You just cannot imagine how terrible the traffic jam is.
M: Why don’t you get up earlier to avoid this time?
W: I’m sorry, sir. I indeed got up early, but my watch is 20 minutes slow.
M: I’m never late for work, you see. I always set my watch 15 minutes fast every day.
W: Oh, that’s a good idea! I’ll set my watch... 30 minutes fast... to avoid hitting rush hour. I promise I won’t be late in future. And I hope you could forgive me once more.
M: That’s right! You are already late for work three times, if this happens again, you will be fired.
13. What’s the possible relationship between the two speakers?
14. Why is the woman late?
15. How many minutes faster will the woman’s watch be than the man’s?