听力原文:W: Excuse me, Sir. I've been waiting here for nearly 20 minutes long just to pay
M: I'm sorry about that. But the computer is down, and everybody has had to wait this afternoon.
Q: What's the woman complaining about?
(14)
A.The long wait.
B.The broken-down computer.
C.The mistakes in her telephone bill.
D.The bad telephone service.