What is it doing?
It is flying.
What are they doing?
They are walking.
What is he doing?
He is running.
what is he doing?
He is eating.
What is she doing?
She is dancing.
What is it doing?
It is sleeping.
What is he doing?
He is swimming.
What is she doing?
She is singing.
Are they walking.
Yes, they are.
Is it walking?
No, it is not.