听力原文：

G: Do you have any hobbies, Jack?

B: I’m interested in watching TV and relaxing games.

G: How do you spend your spare time?

B: I usually read or do some sports.

G: What kind of books are you interested in?

B: My favorite books are those about detectives.

G: What kind of sports do you like?

B: I like almost all sports, and I enjoy both playing and watching. I especially like tennis and mountain-climbing.

G: What kind of personality do you think you have?

B: Well, I think I’m positive and optimistic, and I don’t like to leave anything half-done. It makes me nervous — I can’t concentrate on anything else until the first thing is finished.

Question: Which sports does Jack especially like?

参考答案: 

He especially likes tennis and mountain-climbing.