What are they doing?
They are playing chess.
What's he doing?
He's cleaning.
What's she doing?
She's washing up.
What is she doing?
She is reading a comic.
What is he doing?
He is sweeping the floor.
What's he doing?
He's watching a film.
What's he doing?
He is tidying up.
What's she doing?
She's dusting.
What is he doing?
He's playing computer games.
What is she doing?
She is making the bed.