----- Nội dung ảnh ----- Exercise 1: Put these sentences into the passive voice. 1. Janna writes letters in the room. 2. His friend will help you tomorrow. 3. The mechanic is repairing my car. 4. Susan broke this cup in the kitchen. 5. We are learning Vietnamese in this class. 6. Should they help Ly? 7. How do people make candles? 8. Xuan had returned the book to the library. 9. They were cleaning the floor when I arrived. 10. Nam and Hoa sent me a present last month. 11. I gave them more information. 12. The manager was instructing all the workers. 13. They can't make coffee with cold water. 14. Where did they hold the 1988 Olympic Games? 15. We will hold the seminar before Monday.