Подчеркнуть предложения в пассивном залоге.
1. The drug is used by the patient. The patient can use this drug.
2. The prescriptions were written by the doctor. The doctor wrote out the prescription.
3. The patients are informed about the method of keeping the medicine. Drug label informs the patients about the method of keeping the medicine.
4. The drug will be made by the chemist. The chemist will make these drugs.