What is she doing?
She's brushing her hair
What is he doing?
He's cooking lunch/dinner.
What is he doing?
He's washing the car
What are they doing?
They're hugging
What is he doing?
He's brushing his teeth.
What is she doing?
She's washing her hair
what is he doing?
He's feeding the dog
What are they doing?
They're doing/washing the dishes.
What is the baby doing ?
The baby is sleeping
What is it doing?
It is drinking water (or taking a shower).
What is he doing?
He's helping his friend.
What is he doing?
He's doing his homework
What are they doing?
they're shopping
What is he doing?
He's cleaning the kitchen