1. (2019·保定模拟) 听下面一段独白，回答以下小题。

1. （1） What is the speaker doing?

   A . Chairing a meeting. B . Hosting a radio program. C . Conducting a job interview.
3. （2） What may cause sleeplessness?

   A . Drinking water during the day. B . Eating heavily before sleep. C . A long evening walk.
5. （3） What does lack of proper sleep lead to?

   A . Inability to concentrate. B . Daytime sleeplessness. C . Low blood pressure.