Use the verbs in Present Perfect, Present Continuous, Present Simple or Past Simple.
1. Please give me a pencil, I (to lose) mine.
2. I (not to meet) Peter since Monday.
3. Nina just (to finish) work.
4. Where Sergei (to be)? — He (to go) home. He (to leave) the room a minute ago.
5. What you (to read) now? — I (to read) "Jane Eyre" by Charlotte Bronte. 6. They (to read) "Ivanhoe" by Walter Scott a month ago. What about you? You (to read) "Ivanhoe"?
7. My watch (to stop). There (to be) something wrong with it.
8. You (to see)Jack today? — Yes, I (to see) him at the institute.
9. You (to hear) the new symphony by M.? — Yes, I... . — When you (to hear) it? — I (to hear) it last Sunday.
10. You (to change) so much. Anything (to happen)?