Выберите соответствующую форму инфинитива. 1. i am sorry not (warn, to have warned) you. 2. her little child likes (tell, to be told) funny stories. 3. who was the last (enter, to enter) the room? 4. she is always pleasant (look at, to look at 5. all were shocked (find out, to find out) about her behavior.

1.to have warned
2.to be told
3. to enter
4. to look at
5. to find out

1. are you doing. are you writting your essay? no i have written it already. i finished it 2 days ago
2. i have already had dinner
3. не знаю
4. i lost mine
5. have not met Peter
6. has just finished 
7. where is sergey? he are going to home. he left the room a minutee ago
8. what are you reading? i am reading Jane
9. They read. What about you? Have you read
10. stopped. There is something wrong
11. Have you seen. Yes i saw
12. have you heard? yes i have. when did you hear it? i hears it in lasr Sunday.
13. you have changed so much. have anuthing happend? ( последнее не точно)

1. What are you doing here at such a late hour ? Are you writing your essay ? -- No, I have already writtten it .I am working on my report. -- And when did you write your essay? -- 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 penciI I have lost mine.
5. I haven't 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 aa 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 nything happened?