The teacher often asks me at the lesson. (Active Voice) - I am often asked at the lesson. (Passive Voice)
They buy bread in this shop. (Active Voice) - Bread is bought in this shop. (Passive Voice)
We leave our hats and coats in the hall (прихожая). (Active Voice) - Hats and coats are left in the hall. (Passive Voice)
Present Simple Passive образуется - am/ is/ are + 3 форма глагола.