1)
1. A book was given to John by Tom.
2. Strawberries are not grown by them in greenhouses.
3. Wonderful pizza is made by them in this restaurant.
4. Gunpowder and paper were invented by the Chinese.
5. America was discovered by Columbus in 1492.
6. The job will be given to him by them.
7. The grand has been awarded by the Fund to the group of the youngest researches.
8. The woman was taken by them to the hospital.
9. All the cakes have been eaten by somebody.
10. Some tea has been made by Mrs. Black.
2)
1. I was asked to finish the work today.
2. This book was issued two months ago.
3. In two months he will be sent to England for work.
4. This film is much spoken about.
5. During the excursion we were shown the main places of interest.