A、A city guide. B、A librarian. C、A computer expert. D、A registrar. B细节题。此题询问某人的身份职业。纵览3个题的选项可以推测对话场景与图书馆有关。另外，从开头部分男士需要的帮助，以及贯穿

M: Good afternoon. I wonder if you could give me some information.
W: I’d be happy to. What can I do for you?
M: I just moved out here to the suburbs from the city. I know the library systems are different, so I want to apply for a library card here.
W: Certainly. Please fill out this card. Do you have any identification which shows your new address? I need to see something that verifies that you are a resident of the country.
M: How long will it take for me to get my new card?
W: Not long. We’ll process your application and mall you your new card in about a week. In the meantime, you can have this temporary card which you may use exactly as a regular card.
M: You mean I can use it today to borrow books?
W: Yes. Are you familiar with our system?
M: I’m afraid not.
W: Well, we use a computerized system and you see those desk-top computer terminals over there? There are about a dozen of them throughout the library. We use them to locate our books. Come on. I’ll show you how to use it.
M: I hope I don’t have to have the skills of a computer programmer to be able to use it. All I want to do is to borrow some books.
W: It’s easy. You can know the name of the book, the name of the author, or the subject. Let’s try one as an example.
M: Thank you. I think I’ll explore the whole library on my own in order to acquaint myself with all that you have.
W: Be my guest.