2. Use the correct passive form. 1. This pills (must/take) only with food.
2. Antibiotics ( use) for many years.
3. Rosa ( should/give) better advice by the doctor.
4. People believe that a vaccine to prevent this disease (develop) soon.
5. In the 18 century many patients ( infect) in dirty hospitals.
6. The surgery ( carry on) right now.
7. I (not remember/tell) about this diet before.
8. The grass (cut) every day.