2. Are they singing?
No, they aren't. They're sleeping.
3. Is she crying?
No, She's not. She's laughing.
4. Is it floating in the air?
No, it isn't. It's sinking in water.
5. Is it running in the park?
No, it isn't. It's playing with a ball.
6. Is he dancing?
No he isn't. He's riding a scooter.