1. Please give me a pencil, I have lost mine.2. I haven't met Peter since Monday.3. Nina has just finished work.4. Where is Sergei? — He has gone home. He left the room a minute ago.5. What are you reading now? — I am reading "Jane Eyre" by Charlotte Bronte.6. They read "Ivanhoe" by Walter Scott a month ago. What about you? Have you read"Ivanhoe"?7. My watch stoped. There is (was) something wrong with it.8. Have you seen Jack today? — Yes, I saw him at the institute.9. Have you heard the new symphony by M.? — Yes, I have. — When did you hearit? — I heard it last Sunday.10. You changed so much. Anything happened?11. What are you doing here at such a late hour? Are you writing your composition? — No, I have already written it. I am working at my report. — And when did you write your composition? — I finished it two days ago.12. I say, Tom, let's have dinner. — No, thank you, I have already had dinner.13. What is the weather like? Is it still raining? — No, it stoped raining.