Is she skating?
Yes, she is.
What is he doing?
He's writing.
What is he doing?
He's reading.
What is he doing?
He's riding a bike.
What is she doing?
She's eating.
Is he running?
No, he isn't.
Is she swimming?
No, she isn't.
Is she eating?
Yes, she is.
Is he playing basketball?
Yes, he is.
