听力原文:M: Can you tell me about the university shuttle bus system? This is such a large
W: What do you need to know? I think it's a really ~eat system.
M: First of all, where does it go?
W: The university shuttle bus system goes all over campus. It doesn't leave the campus; if you want to travel off-campus, you'll need to take the city bus system. But the university shuttle bus system will get you from one class to the next very efficiently.
M: And how much does it cost?
W: I'ts free, can you believe it? So you don't have to pay a cent to get all around the university campus.
M: That's really great. And how do I catch the shuttle bus?
W: Just look for one of the bright yellow shuttle bus signs, and go sand next to it. You can see the yellow shuffle bus signs all over campus. A shuttle bus will come along approximately every five minutes, so you shouldn't have to wait long.
M: That sounds good. Thanks for your help.
W: No problem.
(20)
A.The size of the campus.
B.The city bus system.
C.The length of time for each class.
D.The university bus system.