题目内容：

听下面一段较长对话，回答以下小题。

1.Where does the conversation take place?

A. In an office.    B. In the street.    C. On the subway.

2.What’s the relationship between the two speakers?

A. Colleagues.    B. Strangers.    C. Roommates.

3.What are the two speakers mainly talking about?

A. High price of gas.

B. Importance of exercise.

C. Advantages of taking the subway.