[单项选择]

Questions 19 to 21 are based on the conversation you have just heard.
19-21
W: Excuse me, are you going to buy that book
M: Well, I need it for a class but it’s awfully expensive.
W: Oh, we must be in the same class. Introduction to British Literature
M: Yes, that’s the one. Were you there yesterday for the first class
W: I sure was. Professor Robert really seems to know his subject.
M: Yes, I took his Shakespeare course last semester and it was very good. He likes listening to his students.
W: That’s a relief. I’m a biology major and I was a little uncertain about taking an English course.
M: I’m an English major and this is a required course. But now I’m in trouble because I’m not sure I can afford this book.
W: Hey, I’ve got an idea. Why don’t we split the cost and share the book
M: Sounds great. Do you live on camp
A. In a college bookstore.
B. In a lecture hall.
C. In a library.
D. In a dormitory.