What are they doing?
They are playing table tennis.
What is he doing?
He is doing gymnastics.
What is he doing?
He is playing basketball.
What is he doing?
He is playing the guitar.
What is he doing?
He is playing the piano.
What are they doing?
They are playing volleyball.
What are they doing?
They are playing badminton.
What is he doing?
He is making films.
What are they doing?
They are doing karate.
What is it doing?
It is playing the recorder.