Exercise 6. Make the sentences negative.
1. Ann is a schoolgirl. 2. She is seven. 3. It was a very old
book. 4. My grandparents are not very old. 5. They will come
to see us next week. 6. They are students. 7. They were busy
when I came. 8. I am from Russia. 9. They will be in their second year next September. 10. You are very tall.