Поставьте следующие предложения в отрицательную форму: 1. i write a letter. 2. richard walks to school. 3. we lived in that house. 4. my father is working in the garden. 5. yesterday at 5 o’clock they were watching tv. 6. last month we travelled to london. 7. i have read this book. 8. we are at home on sundays. 9. the book lies on the table. 10) they took part in the competition last week.