The patient was told to take antibiotics by Doctor Smith.
A doctor's appointment should be made by Chris.
Annabel's temperature is being taken by a nurse.
Her allergy is coursed by the neighbor's cat.
The victims have been carried to safety by rescuers.
A medical clinic for cancer patients will be built by them.
Passive voice или страдательный залог показывает, что подлежащие подвергается действию, а не оно само выполняет это действие.