What are they doing?
They are sailing
What are we doing?
We are surfing
Is she doing judo?
Yes, she is
What is he doing?
He is playing table tennis
Are they cycling?
Yes, they are
What is she doing?
She is ice skating
Is she skipping?
No, she isn't
Are they playing chess?
No, they aren't
Is he playing basketball?
Yes he is
What is she doing?
She is skateboarding