What's she doing?
She's reading a book.
What are they doing?
They're riding a bike.
What's she doing?
She's painting.
What's she doing?
She's having a bath.
What's he doing?
He's eating.
What's he doing?
He's wearing a helmet.
What's he doing
He's driving a car.
What are they doing?
They're singing.
What's she doing?
She's dancing.