Сделайте предложения отрицательными и вопросительными. 1. there are some people in the room. 2. there are some newspapers on the table. 3. there is a picture on the wall. 4. there is a dog in the yard. 5. there are some children in the garden. 6. there is a tv set in the bed-room. 7. there are some mistakes in the text.