听力原文:M: I went downtown at 8:30 yesterday morning, and I didn't come back to see Bob o
W: I went to Bob's school at 5:20 because I had an important appointment with Bob' s teacher at 5:30.
Q: What time did the woman have to see Bob's teacher?
(5)
A.5:30
B.8:30.
C.5:20
D.5:00