Answer the following questions, using the present perfect tense. 1. why can't you give the book back? (not finish, yet). 2. why can't you repeat the question? (not hear). 3. are they leaving? (not change their plans). 4. what's the matter with you? i think (catch cold). 5. why is it so quiet in the house? (everybody, leave). 6. where will you go in summer? (not decide, yet). 7. how long has this film been on? (for about a week). 8. have you ever been late for classes? (never). 9. how are they? i don't know (not see them lately). 10. where is yesterday's newspaper? (just, throw out). 11. how long have you lived in moscow? (since, be born). 12. how much time has passed since he left? (a fortnight). 13. how many times have you been to leningrad?

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 question
3. 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.