answer: Mark invites Susan to a movie tonight, but Suan has to do some housework.
documents: #Person1#: Hello . this is Susan.
  #Person2#: Hello, I'm Mark. I'm just wondering if you are free this weekend.
  #Person1#: Yes, I think So.
  #Person2#: Good. I was thinking that I'd like to invite you to watch a movie. I can meet you at the cinema gate.
  #Person1#: What's the time?
  #Person2#: Six thirty, tonight.
  #Person1#: Oh, I'm sorry I can't. because I have to do some housework. You can ask Jenny to go with you.
  #Person2#: All right. Maybe next time I can go with you. Bye!
  #Person1#: Good bye!