第一部分 听力(共两节，满分30分)
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。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．How much does she have to pay if she buys one now?
A．$5.00. B．$4.50. C．$3.50.
2．Where does the conversation most probably take place?
A．In a library.
B．At a restaurant.
C．In a bookstore.
