What's he doing?
He is driving a car
What's he doing?
He is playing tennis
What's she doing?
She is drawing a picture
What's cat doing?
Cat is sitting on a chair
What's he doing?
He is playing tennis
What are they doing?
They are watching TV
What's cat doing?
Cat is taking (having) a bath
What are they doing?
They are listening to music
What are they doing?
They are playing a game
What's he doing?
He is reading a book
What is cat doing?
Cat is playing the piano
What's he doing?
He is flying a plane (and taking a photo)
What's he doing?
He is eating chicken.
What's she doing?
She is drawing a picture.
What's he doing?
He is opening a door
What's cat doing?
Cat is listening to music
What's she doing?
She is listening to music