Who is this?
It's a musician.
Who is this?
It's a singer.
Who is this?
It's a scientist.
What are you doing? You ____________ (drive) a bus.
You are driving a bus.
What is he doing? He ___________ (act).
He is acting.
Who is this?
It's a waiter.
Who is this?
It's a police officer.
What are they doing? They __________ (cook).
They are cooking.
Who is this?
It's a firefighter.
What am I doing? I __________ (fix) the car.
I am fixing the car.