A、Whether a book is available or not. B、The serial number of a book. C、The title of a book. D、The author of a book. A

M: Excuse me, could you tell me where I can find a book on philosophy?
W: Well, (8)you can start by looking at the card catalogue under H.
M: I’m not very familiar with the card catalogue. Can you explain to me how it works?
W: Sure. Do you see the cards? (9) All the books are listed both by title and by the author’s last name according to the alphabetical order. That is according to the arrangement of 26 letters.
M: But I don’t have a particular book or author in mind. I just need some general information on Greek philosophy.
W: In that case, you may look on the general subject heading of philosophy. And Greek philosophy is classified in the section with numbers from 210 to 420.
M: Oh, I see. It sounds a huge job.
W: Anyway, you can find all of the books listed in the computer and (10) it gives you more information than the card catalogue. It will let you know if the book you are looking for is currently available, and which library to find it in if it is not available here.
M: I’ve never used the computer for finding a book. Is it hard to use?
W: No, it’s quite simple. The instructions are there beside the computer. You won’t have any trouble.
M: But then what should I do after I find a book I need?
W: You’ll get a same number both from the card and computer. (11) Write down the number. It tells you where to look for the book on the shelves.
M: Oh, I get it. Thank you very much. W: You’re welcome.
　　8. Where does the woman tell the man to get information at first?
　　9. How are all the books listed on the card catalogue?
　　10. What information is provided by computer but not by the card catalogue?
　　11. Why is the man asked to write down the number?