What is he doing?
He's playing football.
What are they doing?
They're swimming.
What are you doing?
I'm reading.
What is he doing?
He's riding a bicycle.
What is he doing?
He's doing karate.
What is she doing?
She's exercising.
What are you doing?
I'm riding a horse.
What is she doing?
She's playing chess.
What are you doing?
I'm ice skating.
What are they doing?
They're playing volleyball.