What is she doing?
She is playing the piano.
What is he doing?
He is walking the dog.
What is he doing?
He is singing.
What is the cat doing?
It is taking a nap.
What is he doing?
He is working/surfing the internet.
What are you doing?
I am keeping my diary.
What is she doing?
She is jumping.
What is he doing?
He is swimming
What are they doing?
They are playing.
What is it doing?
It is sweeping.
What is he doing?
He is watching TV.
What is it doing?
It is having a snack.
What is he doing?
He is having a shower.
What is he doing?
He is riding a bike.
What is the dog doing?
The dog is driving a car.
What is she doing?
She is playing the guitar.
What is she doing?
She is playing the violin.
What is she doing?
She is exercising/doing exercise.
What is he doing?
He is mopping the floor.
What is she doing?
She is reading (book)/studying.
What is she doing?
She is reading the newspaper.