听力原文:W: Excuse me, sir. I've been waiting here for nearly 20 minutes now just to pay t
M: I'm sorry about that. But the computer is down and every-body has to wait this afternoon.
Q: What is the woman complaining about?
(17)
A.The bad telephone service.
B.The mistakes in her telephone bill.
C.The broken-down computer.
D.The long wait.