阅读理解。
Ann: Hello, Ben. May I ask you some questions?
Ben: Sure.
Ann: Which place in your school do you like best, Ben?
Ben: I like the playground best. I like playing football. How about you?
Ann: I like music room. Because I love dancing. Dancing is relaxing.
Ben: Which place does Betty like best?
Ann:I think she like the library. She enjoys reading because she thinks reading is fun. What about Harry?
Ben: I think he likes the gym best?
Ann: Why do you think so?
Ben: Because his favorite sport is swimming. He likes swimming in the gym.
1. How many people are mentioned (被提及) in this dialong?
2. What is Ben's favorite place?
3. Which place does Ann like best?
4. Why does Harry like the gym best?
5. 将对话中的划线部分译成汉语。