What is the cat doing?
The cat is swimming.
What is he doing?
He is diving.
What is it doing?
It is snorkelling.
What are they doing?
They are sailing.
What are they doing?
They are surfing.
What is it?
It's a ship.
What are they doing?
They are windsurfing.
What are they doing?
They are surfing.
What is she doing?
She is waterskiing.
What is it?
It's a sailboat (or yacht).
What is it?
It's a yacht.
What is it?
It's a rowing boat.
What are they doing?
They are sailing.
What are they doing?
They are kayaking.