1. Booms are being dropped by the airplanes
2. The lions were fed by the keepers
3. She has been taken to the hospital
4. His whole of body had been fastened to the ground
5. A lot of time had been wasted by the school boys
6. Letter is wriiten to our friend once a week
7. The garages are cleaned every day
8. He has been given a lot of money
9. Two hundred people were arrested by the police
10. This computer is exported to...
11. The meeting has been cancelled
12. All the students have been invited in the school
13. The letters were posted yesterday
14. Two children were found in the forest by the police
15. A meeting will be held before May Day