What are they doing?
He is watching TV!
What are they doing?
They are roller skating!
What are they doing?
He is writing!
What are they doing?
He is crafting!
What are they doing?
He is singing! / He is playing guitar!
What are they doing?
They are riding a bike!
What are they doing?
He is reading!
What are they doing?
She is crocheting!
What are they doing?
They are dancing!
What are they doing?
She is painting!
What are they doing?
They are playing soccer!
What are they doing?
He is playing video games!