1. 听材料，回答问题。

1. （1） How much more will they pay for their telephone calls than last month?

   A . More than 3 pounds. B . Less than 3 pounds. C . 10 pounds.
3. （2） Who do you think Jack is?

   A . Their son. B . Their father. C . The man's secretary.
5. （3） Why did Jack make so many telephone calls to London?

   A . Because his father was in London. B . Because his girlfriend was in London. C . Because his grandfather was in London.