поставить в страдательный залог 6. When I came home, they had eaten the sweets. 7. We shall do the work in the evening.

6. When I came home, the sweets had been eaten by them. 7. The work shall be done by us in the evening. 8. This book was written in the 19th century by him. 10. Tennis was being played by them from 4 till 5. 11. A lot of money was stolen by him from the shop. 12. The work had been finished by them by 6 o\'clock. 13. At 12 o\'clock the trucks were being loaded by the workers. 14. The trucks had been loaded by 3 o\'clock by the workers. 15. Our daughter is sent to rest in to the south every year by us. 16. This film will be shown on TV by them. 17. A new concert hall is being built in our street. 18. A number of important experiments have been made in this laboratory by them. 19. Central Africa was explored by Sieving Stone in the 19th\' century. 20. All the trees had been planted by the middle of autumn by us. 21. This play will be staged at the beginning of next season.