What are they doing?
They're walking.
What is he doing?
He's drinking
What is he doing?
He's sleeping
What are they doing?
They're dancing
What's he doing?
He's cleaning.
What's she doing?
She's singing terribly.
What's he doing?
He's playing the guitar terribly.
Is she eating?
No, she isn't
Is he doing homework?
Yes, he is.
Is he making a machine?
No, he isn't
Is she singing?
Yes, she is.
