What are they doing?
They're walking.
What are they doing?
They're drinking water.
What are they doing?
They're throwing tomatoes.
What are they doing?
They are eating watermelon.
What are they doing?
They're playing basketball.
What are they doing?
They're reading.
What are they doing?
They are dancing.
What are they doing?
They're riding a bike.
What are they doing?
They're running.
What are they doing?
They're playing soccer.