1. Clean air provides us....a healthy supply of oxygen
2. I'm very sorry....what I have done
3. His son succeeded......the throne
4. My hat is quite similar.....yours
5. I'm tired....waiting for her
6. I'm so worried....my sister who is ill
7. It is very bad....you to eat so quickly
8. I'm not good.......tennis
9. Mt birthday is.......the first........the month
10. This will come in very useful........her