Whose is this hose?
It´s the firefighter´s.
Whose are these scissors?
They´re the hairdresser´s.
Whose is this hat?
It´s the police officer´s.
Whose is this paintbrush?
It´s the artist´s.
Whose is this blackboard?
It´s the teacher´s.
Whose is this spanner?
It´s the mechanic´s.
Whose is this plane?
It's the pilot's.
Whose is this tractor?
It´s the farmer´s.
Whose is this stethoscope?
It´s the doctor´s.