A、Because they are not friends. B、Because he failed last exam. C、Because they are not in the same class. D、Because she has never

W: Hi, Mike. Your roommate told me that I could find you in the kitchen. What are you doing here?
M: What does it look like I am doing?
W: Well, it looks like you are watching television. But we have an exam tomorrow, so I thought you’d be studying for it and maybe I can study with you.
M: Oh, well, I was just taking a break. The books give me a headache if I work on it too long.
W: I know what you mean. I’ve been working on it for three hours already.
M: But I can’t believe you are coming to me. I mean you do know what I got on the last test, don’t you?
W: Yeah, I know. You told me. I just thought two heads might be better than one.
M: That’s nice idea. But... you know, I wish I knew that person in our class who got a hundred on the last test. She didn’t miss a question. Umm... was it Julie?
W: Oh yeah, Julie! She is a friend of mine. She’d be a big help right now. Why don’t I give her a call?
M: What! At this hour? It’s already ten thirty.
W: I guess you are tight. But you know what, she owes me a big favor. Let’s at least give her a call and see what she says. Maybe going over some of the problems with us would help her review the material.
M: It’s worth a try.