2 Complete the dialogue with it's / there's / there are.

Разбираемся:

• A: Hi! There's a group run this Saturday. Do you want to go?
• B: Ah - It's my brother's birthday on Saturday. I'm going to the beach with him. Where does the run take place?
• A: Well, there's in the afternoon at Green Park.
• There are going to be about fifty runners. I love that the group runs in the park. It's fun to run with other people!
• B: You're right. It's better than running on your own. I can ask my brother. He might prefer it to the beach.