... ... builders.
They are
... ... builder.
He is
... ... builder.
She is
... ... doctors.
They are
... ... a doctor.
She is
... ... a doctor.
He is
... ... an ambulance.
It is
... ... a crane.
It is
... ... a firefighter.
He is
... ... a firefighter.
She is
... ... a firetruck.
It is
... ... firetrucks.
They are
... ... a police officer.
He is
... ... a police officer.
She is
... ... a police car.
It is
