听力原文：W: Hi, Don, would you like to go swimming this afternoon？
M: I wish I could, but I have to spend the rest of the day in the library. I have a ten-page paper due tomorrow.
W: Oh, is that for Prof. Lowell's class？
M: Yes, I have to do an analysis of a poem we read in class.
W: That's hard. How is it going so far？
M: Not very well. And I also have to study a lot for math and history. I don't know how I'm going to do it all.
W: You know, Don, I've been doing well in math, so I'd be happy to help you.
M: Oh, that will be great, Jenny.
W: If you like, we can start after I come back from swimming.
M: OK. I'll see you in front of the library.
W: Gook luck with the poem.
(20)

A. He must speak with Professor Lowell.
B. He has to take a math test.
C. He's going to a conference.
D. He has to finish a paper.