What sport is it?
basketball
What sport is it?
volleyball
What sport is it?
badminton
What's she doing?
She's catching the ball.
What are they doing?
They're playing tennis.
What sport is it?
baseball
What is the boy doing?
He's kicking the ball.
What's the girl doing?
She's throwing the ball.
What are they doing?
They're playing football/ soccer.
What's he doing?
He's hitting the ball.