What are they doing?
They are playing hockey.
What is he doing?
He is taking a picture/photo.
What is she doing?
She is walking.
What is he doing?
He is playing the piano.
What are they doing?
They are studying.
What are they doing?
They are playing baseball.
What is he doing?
He is using a computer.
What are they doing?
They are playing badminton.
What is she doing?
She is singing.
What are they doing?
They are playing tennis.
What is he doing?
He is fishing.
What are they doing?
They are watching TV/television.
What is he doing?
He is painting.
What is he doing?
He is swimming.
What are they doing?
They are playing soccer/football.
What are they doing?
They are playing table tennis.
What is she doing?
She is drawing.
What is she doing?
She is running.
What is she doing?
She is sleeping.