What are they doing?
They are playing BASEBALL.
What is he doing?
He is playing the piano.
What are they doing?
They are SKATEBOARDING.
What are they doing?
They are playing BADMINTON.
What are they doing?
They are playing BASKETBALL.
What is he doing?
He is FISHING.
What are they doing?
They are playing TENNIS.
What are they doing?
They are playing HOCKEY.
What are they doing?
They are playing VIDEO GAMES.