Who works at the post office?
The postal worker works at the post office.
Who works at the department store?
The salesperson works at the department store.
Who works at the library?
The librarian works at the library.
Who works at the supermarket?
The cashier works at the supermarket.
Who works at the restaurant?
The waiter works at the restaurant
Who works at the animal hospital?
The vet works at the animal hospital