提示：Alice要Bill帮她把书搬到她的房间。Bill问Alice从哪儿得到这么多的书。Alice说她在书店待了一整天。Bill看到不少书是有关亚洲的，就问Alice她是不是正计划在亚洲找份工作。Alice回答说她是因为这些书值这些钱才买的。
Alice: Hi, Bill. How about helping me{{U}} (51) {{/U}}? If I try and do it myself, I think I'll break my arms.
Bill:{{U}} (52) {{/U}}—rob a librarian? Oh, no, don't tell me you are going to open a bookstore.
Alice: Very funny.{{U}} (53) {{/U}}. After New Year, many books were on sale. And I picked up so many really interesting ones." Take a look.
Bill: Speak Japanese, Introduction to Asia.{{U}} (54) {{/U}}?
Alice: Well, they are all interesting. I bought them{{U}} (55) {{/U}}. I couldn't afford them if they were new.