1. (2020·云南模拟) 听材料，回答问题。

1. （1） How long did Dave spend on his English homework?

   A . Thirty minutes. B . More than forty minutes. C . Thirty-five minutes.
3. （2） What's probably the chemistry teacher's advice?

   A . To send gifts to the teacher. B . To do more chemistry exercises.        C . To follow his parents' advice.