Amy: Hi, Jack. What are you on Sunday afternoon?
Jack: I'm shopping with mom and dad. What are you doing, Amy?
Amy: Oh, I want to badminton, but I don't have a partner.
Jack: Did you ask Cathy? She badminton twice a week.
Amy: But she already has a partner.
Jack: What about Jimmy? He doing anything on Sunday, I think.
Amy: But Jimmy doesn't play badminton at all.
Jack: Well, maybe I can play you on Sunday morning. I am not doing anything then.
