完成下面的对话，一空一词。

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.