听力原文:W: I wonder if Tom will come. It's already 10: 00, and he was supposed to come at
M: He told me he would start 30 minutes earlier. Maybe something happened to him.
Q: How long have the man and the woman been waiting?
(14)
A.1 hour.
B.30 minutes.
C.1.5 minutes.
D.2 hour.