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. How does Mary’s brother study for a test?
A. By working with friends. B. By listening to tapes. C. By reading the textbook.
2. How many books does Ann have already？
A. Two. B. Five. C. Three.
