1. (2021高二上·宝鸡期中) 听下面一段较长对话，回答以下小题。

1. （1） Why does David want to speak to Mike?

   A . To call off a meeting. B . To invite him to a party. C . To discuss a schedule.
3. （2） What do we know about the speakers?

   A . They are colleagues. B . They've never met before. C . They are close friends.