听力原文:W: Why didn't you make an appointment to see the doctor when you first hurt your
M: The injury didn't seem serious then. I decided to come today because my foot still aches when I walk.
Q: Why didn't the man see the doctor earlier?
(13)
A.He had missed an earlier appointment.
B.His foot had seemed all right.
C.His foot was badly injured and he couldn't walk.
D.He was not able to find the doctor.