第一节（共5小题；每小题1.5分，满分7.5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。
1. Where does this conversation take place?
A. At a library. B. At a bookstore. C. At a lab.
2. What is the relationship between the speakers?
A. Salesgirl and customer. B. Waitress and customer. C. Boss and secretary.
