1. Мы обсудили очень важные вопросы сегодня. We didn't discussed very important questions today. Did they discussed very important questions today?2. Они купили новую машину. They haven't bought a new car. Have they bought a new car?3. Я часто заказываю фруктовый салат на десерт. I don't often order for dessert a fruit salad. Do you often order for dessert a fruit salad.4. Я сейчас читаю очень интересную книгу. I'm not reading a very interesting book at the moment. Are you reading a very interesting book at the moment?