Ответ: there, They're
Краткое пояснение: Выбираем наречие there (там) и местоимение They're (они есть).
- Look over there / their / they're. I can see my friends. (there - наречие, указывает на место).
- There / Their / They're flying a kite. (They're - сокращение от they are, указывает на действие).
Ответ: there, They're