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