.............. are you doing? - We are playing.
What
Who are they?
They are a music band.
Are they watching TV?
No, they aren't.
Are they dancing?
No, they aren't.
Is he eating pizza?
No, he isn't.
What are they doing?
They are talking.
What is she doing?
She is brushing her hair.
What is he doing?
He is washing the car.
Are they playing the guitar?
No, they aren't.
What are you doing?
I'm reading a book.
Is she taking photos?
No, she isn't.
What are they doing?
They are doing homework.