a police officer
A police officer works at the police station.
a waiter
A waiter works at the cafe.
a nurse
A nurse works at the hospital.
a greengrocer
A greengrocer works at the greengrocer's.
a vet
A vet works at the animal hospital.
an actor
An actor works at the theatre.
a doctor
A doctor works at the hospital.
a clown
A clown works at the circus.
a postman
A postman works at the postoffice.
a baker
A baker works at the baker's.
a mechanic
A mechanic works at the garage.
a teacher
A teacher works at school.