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