en using the online catalogue(目录)for quite a (1) w______. Is there anything I can do to help you? M: Well, I’ve got to write a paper about Hollywood in the 30s and 40s, and I’m really struggling. There are hundreds of books, and I just don’t know (2) w_____ to begin. W: Your topic sounds pretty big. Why don’t you narrow it down to something like…uh… the history of the studios during that time? M: You know, I was thinking about doing that, but more than 30 books came up when I (3) t_____ in “movie studios.” W: You could cut that down even further by listing the specific (4) y_____ you want. Try adding “1930s” or “1940s” or maybe “Golden Age.” M: “Golden Age” is a good idea. Let me type that in. Hey, look, just 6 books this time. That’s a lot better.