1. Why can't you give the book back? I have not finished reading it yet. 2. Why can't you repeat the question? I have not heard the question3. Are they leaving? Yes, they are. They have not changed their plans. 4. What's the matter with you? I think I have catched cold.5. Why is it so quiet in the house? Everybody has left.6. Where will you go in summer? I have not decided yet.7. How long has this film been on? The film has been on for about a week.8. Have you ever been late for classes? I have never been late for classes.9. How are they? I don't know I have not seen them lately. 10. Where is yesterday's newspaper? I have just thrown it out. 11. How long have you lived in Moscow? I have lived in Moscow since I was born.12. How much time has passed since he left? A fortnight has passed since he left.13. How many times have you been to Leningrad? I have never been to Leningrad.