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。第二节（共15小题；每小题1.5分，满分22.5分）
1．Where does this conversation most probably take place?
A．On the airplane. B．In the bookstore. C．At the post office.
2．What’s the probable relationship between the speakers?
A．Waitress and customer. B．Husband and wife. C．Friends.
3．Where is Mary’s husband now?
A．At the working place. B．Outside having lunch. C．At home.
