does the firefighter fight fires?
Yes, he does
Where does the salesperson work?
the salesperson works at the department store
Who works at the supermarket?
the cashier works at the supermarket
What does the salesperson do?
the salesperson sells things
What does the vet do?
the vet helps sick animals.
Where does the librarian work?
the librarian works at the library
Does the doctor work at the animal hospital?
no, she doesn't. She works at the hospital.
What does the pilot do?
the pilot flies planes.
Who works at a restaurant?
the server works at a restaurant
Does the bus driver fly planes? (if no, what does the bus driver do?)
No, she doesn't. She drives buses