单项选择题


说明:每段对话后有一个小题,请从题中所给的A、B、C三个选项中选出最佳选项。(每段对话后有15秒种的停顿,以便回答问题和阅读下一问题。)
What is the woman doing in Beijing

A. Teaching.
B. Seeing friends.
C. Visiting.