Who works here?
a firefighter
Who works here?
a doctor
Who works here?
a teacher
Who works here?
a waiter
Who is this?
a waiter
Who is this?
a doctor
Who is this?
a shop assistant
Who works here?
a policeman
Who is this?
a firefighter
Who is this?
a teacher
Who is this?
a policeman
Who works here?
a shop assistant