1. (2020·陕西中考) 听对话，回答问题。

1. （1） When did the boy start to run?

   A . When he was five years old. B . When he was ten years old. C . When he was fifeen years old.
3. （2） How often did the boy run when he started?

   A . Once a week. B . Twice a week. C . Three times a week.
5. （3） How is he now?

   A . Stronger. B . Taller. C . Thinner.