Who
Who works at the supermarket?
The cashier works at the supermarket
Who works at the animal hospital?
The vet works at the animal hospital
What does the pilot do?
The pilot flies planes.
What does the vet do?
The vet helps sick animals
Who works at the department store?
The salesperson works at the department store
Who works at the library?
The librarian works at the library
The firefighter fight fires
The bus driver drives buses
Who works at the post office?
The postal worker works at the post office
Who works at the restaurant?
The server works at the restaurant
What does the cook do?
The cook makes food.
What does the salesperson do?
The salesperson sells things