2. No, they aren`t. They are playing volleyball.

3. No, i am not. I`m having lunch.

4. No, he isn`t. He`s playing football.

Verified answer

2) No, they aren't. They are playing volleyball.

3) No, I am not. I am having dinner.

4) No, he isn't. He is playing football.

Надеюсь помогла и все правильно.

Если не сложно сделайте мой ответ лучшим пожалуйста:]