听力原文:W: The admission price is $ 90 per person. That's really expensive for just one s
M: You're right. But if you have a student card, you'll get in for $ 30.
Q: How much will a student have to pay for the show?
(17)
A.Sixty dollars.
B.Thirty dollars.
C.Ninety dollars.
D.One hundred and twenty dollars.