Karen: Are you going to the school party on Sunday?

Mike: Yes, I am. I want to wear my new jeans!

Karen: You can't do that!

Mike: What will happen if I do?

Karen: Teachers won't let you in. You should wear your cool pants.

Mike: That's a great idea.

David: Oh, I will go to the school party too. Let's bring some snacks.

Karen: Oh, we can't do that.

David: Then, can we bring(带) our friends from other schools?

Mike: No, we can't. If we do, the teachers will ask them to leave. Because this is our school’s party.