第二节（共15小题；每小题1分，满分15分）
听下面6段会话，每段会话后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段会话读两遍。
听第一段会话，回答6、7小题。
6. What subject has Wang Mei studied for about three years?
A. Chinese. B. English. C. Math.
7. How does she learn it?
A. By watching videos. B. By listening to tapes.
C. By practicing conversation with others.
