听力原文:W: John, do you want to go swimming with me today?M: Sure, but I can' t leave now
听力原文:W: John, do you want to go swimming with me today?
M: Sure, but I can' t leave now. I have an appointment with my professor at 3 o' clock.
Q: Why can' t John go swimming now?
(15)
A.He must meet his teacher.
B.He must attend a class.
C.He must go out with his girlfriend.
D.He must stay at school to finish his homework.