What are they doing?
They're playing hockey
What is he doing?
He's painting
What is he doing?
He's reading
What are they doing?
They're playing badminton
What is he doing?
He's fishing
What is she doing?
She's riding a bike
What is she doing?
She's playing the piano
What are they doing?
They're playing baseball
What is he doing?
He's playing the guitar
What are they doing?
They're playing table tennis
What is she doing?
She's swimming
What is he doing?
He's playing tennis
What are they doing?
They're playing soccer / football
What are they doing?
They're playing basketball