Liu: Alice, you play football in the afternoon and run in the morning. You like sports, don't you?
Alice: Yes. I like all sports and games. 
Liu: Really? What are your favorite sports then? 
Alice: To tell you the truth, I like to play ball games. I'm good at playing football, basket ball and cricket. I'm also fond of table tennis, golf and badminton, but I'm poor at them. 
Liu: Are you interested in track and field events? 
Alice: Yes. But I only like to watch the competitions. Liu, how about you? 
Liu: I also like sports and games, but I'm only a spectator. I never miss the World Cup and Wimbledon. I think it's more exciting to watch than to join them. 
Alice: Maybe you're right. But everyone should have his favorite sports. 
Liu: I have. I like swimming, skating, doing body exercise and jogging. I do sports just to keep fit. 
Alice: No wonder you're so slender.