Из пассивного залога в активный
1. This investigation was often referred to. 2. The children’s drawings will be exhibited next month. 3. The twins were brought home by their elder sister. 4. The radio was invented by a Russian scientist. 5. A new modern building is being constructed in the neigh bourhood. 6. We usually don’t like to be laughed at. 7. The doctor must be sent for at once. 8. The child must be looked after. 9. The article was being discussed, when we came. 10. All the trees will have been planted by the time we come.