What are they doing?
They are walking.
What is he doing?
He is swimming.
What are you doing?
We are playing soccer/football.
What are they doing?
They are flying.
What are you doing?
I am drinking.
What are you doing?
We are sleeping.
What is it doing?
It is jumping
What are you doing?
We are running.
What is he doing?
He is eating.