1. When I am ill I go to see a teacher. 2. I broke my leg while I was playing chess.
3. A person is healthy when he has got a bad cough.
4. I had a stomachache, so I went to the dentist.
5. I took medicine because I was well.

i have chosen biology for my exam. it is very interesting. i like biology very much. at this lesson i learn about plants and animals. i was very happy when i listened about exam three days ago. i came home and began repeated the whole biology textbook. it was very interesting. the next day i came to my school. we had written exam. it was good. i think that it is esier then oral. the exam wasn't very difficult. i also helped to my friends to write exam.

                                      не знаю, что можно ещё добавить. надеюсь это : )

1. Tell me, isn’t that his girl-friend over there? Oh, no, she isn’t his friend, she is ours. 
2. Don’t take this book. It is not your book, it is his.
3. Have you got a pencil? Kate has got no pencil to write with. Give her yours.
4. Tell him not to forget his tickets, ask Helen not to forget hers either.
5. Take your English magazines and give me mine.
6. Look at the cat, its coat is so thick.
7. Isn’t that their composition? Yes, it is theirs.
8. Don’t come, my sister is ill.
9. Don’t touch her face.
10. Our answers are good.