Are you good at swimming?
Yes, I am./ No, I'm not.
What is he doing?
He's scoring a point.
What are they doing?
They're doing gymnastics.
What is she doing?
She's catching a ball.
What are they doing?
They're doing judo.
What are they doing?
They're playing volleyball.
What are they doing?
They're shouting.
What are they doing?
They're playing tennis.
What are they doing?
They're playing ping-pong.
What are they doing?
They're playing basketball.
Are you good at singing?
Yes, I am./ No, I'm not.
What is he doing?
He is throwing a ball.
What is he doing?
He's bouncing a ball.
Are you good at cooking?
Yes, I am./ No, I'm not.
What are they doing?
They're winning a soccer game.