What do they do?
doctors
What does he do?
a doctor
What do they do?
police officers/ policemen
What does he do?
a police officer/ a policeman
What do they do?
chefs/ cooks
What does he do?
a chef/ a cook
What do they do?
teachers
What does she do?
a teacher
What do they do?
astronauts
What does he do?
an astronaut
What do they do?
firefighters
What do they do?
farmers
What does he do?
a firefighter
What does she do?
a farmer
What does he work?
fire station
Where does he work?
hospital
