Complete the conversation with it or it's.

Alfie: Shall we go to the swimming pool?
Connor: Sorry, I can't. It's too expensive.
Alfie: What about the beach then? That's cheaper.
Connor: No, I don't like the beach, it's too dirty.
Alfie: OK. Shall we go to the park and play football?
Connor: It's not too hot under the trees.
Alfie: I don't like playing football.
Connor: It isn't fun!
Alfie: Try it!
Connor: No. I really don't like it!
Alfie: I don't know! What do you want to do?
Connor: I don't know. It's raining now, anyway! I've got a new computer.
Alfie: Shall we watch a film on it?