III. Change from Active Voice into Passive Voice. 1. They wore cotton dresses. 2. The girls tidied the rooms. 3. They did the washing up. 4. She received the diploma of primary school teacher in 1998. 5. Mother taught the children to knit and sew. 6. They will do everything for you. 7. The parents must select books for their children. 8. She had to overcome many difficulties. 9. A group of students will write some articles for the new magazine. 10. The old woman was telling us interesting stories the whole evening. 11. They will finish their work tomorrow. 12. They can find all the necessary books in their school library. 13. At this moment the teacher is explaining new grammar rules.