listen to the material carefully,although it is difficult and sometime you can't write down the correct answer.As long as you have tried,whatever you write down will be the harvest of yours.You should believe that only by accumulating little by little could you learn English welll.so come on.
W: Can I help you?
M: Yes, I’m looking for a book on the presidential election system in the United States.
W: Well, all of our textbooks are arranged by subject and course number in the back of the store.(1)____________________
M: No, it isn’t. I’ve already looked through all the political science books in the back, but the ones I saw only had a few pages, at most, on the topic.
W: How about the paperback section? There may be something there.
M: Okay.
W: Or better yet, you should try looking in Books in Print.
M2)____________________ What is it?
W: It’s an index that lists all of the books currently available from publishers. If you have a specific book in mind, you can look under the author’s last name.
M: But I don’t.
W: Then look directly under your subject, presidential elections.
M: (3)____________________
W: Well, if it’s not in stock, we can order it for you.