I. Change the sentences using Passive Voice. 1. They dust the flat every day. 2. They will stage this performance at the end of next season. 3. Alexander Bell invented the telephone in 1876. 4. They will discuss the book at the next conference. 5. He will write a very interesting article. 6. I spent all my money on books last month. 7. They make butter from milk. 8. You must book the tickets for the play.

Here are the sentences changed to Passive Voice: 1. The flat is dusted every day. 2. This performance will be staged at the end of next season. 3. The telephone was invented by Alexander Bell in 1876. 4. The book will be discussed at the next conference. 5. A very interesting article will be written by him. 6. All my money was spent on books last month. 7. Butter is made from milk. 8. The tickets for the play must be booked. **Explanation (на русском):** * **Активный залог (Active Voice):** Подлежащее совершает действие (например, 'They dust the flat'). * **Пассивный залог (Passive Voice):** Подлежащее испытывает действие на себе (например, 'The flat is dusted'). Чтобы перевести из активного залога в пассивный, нужно: 1. Объект активного предложения сделать подлежащим пассивного. 2. Использовать форму глагола 'to be' (is, are, was, were, will be, has been, etc.) в нужном времени. 3. Использовать past participle (третью форму глагола) основного глагола. 4. Добавить 'by + объект активного предложения' (не всегда обязательно), если важно указать исполнителя действия.