听力原文:M: Where's Joan? She said she would be here at 3, and now it's 3:30. She must hav
W: I think so, but I hope she won't miss the next one; otherwise she'll be late for the opening address at the conference.
Q: What does the woman worry about?
(14)
A.Joan may have taken a wrong train.
B.Joan won't come to the conference.
C.Joan will miss the next conference.
D.Joan may be late for the opening speech.