1. 听材料，回答问题。

1. （1） What's the relationship between the speakers?

   A . Brother and sister. B . Mother and son. C . Classmates.
3. （2） What are they going to do?

   A . They are going to have an exam. B . They are going to travel. C . They are going to buy a watch.
5. （3） What does the woman think of the man?

   A . He is very serious. B . He is too careless. C . He is very lazy.