Ex. 6. Change the sentences into interrogative and negative: Изменение предложений в вопросительные и отрицательные 1. There are some fruit trees in front of my house. 2. I live in a new district. 3. We can go out for a walk now. 4. You must switch off the tape-recorder. 5. The walls of our kitchen are whitewashed. 6. My friend lives in his own house. 7. We often receive guests in the sitting room.