1. He has used new programms in his project.
2. New programms have been used in this project
3. When she came home, her mother was washing a child.
4. When she came home, a child was being washed.
5. They will invite many guests to the party.
6. Many guests will be invited to the party.
7. We build many buildings in Moscow every year.
8. Many buildings are built in Moscow every year.
9. The Christmas Tree was decorated on december 20.