She ________________ at a fire station.
works
Where is it?
airport
he / at / a / works / lab
He works at a lab.
Where is it?
clinic
He ______________ at an airport.
works
She ________________ at a lab.
doesn't work
He _______________ at the resraurant.
doesn't work
she / at / a / work / station / police / doesn't
She doesn't work at a police station.