1. (2021九上·昭通期中) 听材料，回答问题。

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

   A . Father and daughter. B . Mother and son. C . Teacher and student.
3. （2） How many inventions did Thomas Edison make?

   A . Less than 300. B . More than 1, 300. C . More than 3,300.