1.This letter was received (by us) after his departure.
2. Have you ever been attacked by dogs?
3. Honey is gathered by bees from flowers.
4. The ship was driven against a rock by the storm.
5 Whom was the circulation of blood discovered by?
6. Delicios fruit ice cream is being sold there now.
7.The way out of the wood was shown to us by the old man.
8.She was offered some interesting work (by them).
9. New medicine was prescribed to her by the doctor.
10. He is often spoken about (by them).
11. This funny animal was laughed at by everybody.
12.You have been looked for the whole morning (by us).
13.Strict discipline will be insisted on (by us).
14. Three foreign languages are taught at this school.