Требуется небольшая по языку! решить, заранее ! выбери правильный вариант: там где скобочки и знак /, нужно выбрать одно из двух) 1) don't worry about the letter i (have already posted/have been postng) it. 2) nina (has been learning/has learned) english for 2 years. 3) she (has been playing/has played) tennis since she was eight. 4) the birds (have already flown/have been flying) to the south. 5) the train (has just come/has been coming 6) she (has been teaching/has taught) at this school for twenty years. следующее : поставь правильную форму: 1) she/clean/the flat for four hours she has been cleaning the flat for 'our hours. 2) she/do/two rooms. she has done two rooms. 3) i/read/tolstoy stories/in the park for two hours. 4) i read/three stories. 5) granny/kait/in the living room/since morning. 6) she/knit/a sweater/for me. 7) my sister/skate/since childhood. 8) she/take part/in many competitions. если вы добрый человек, и вам не тяжело, сделайте и обьяснение в одну строчечьку))

Это упражнение на различие между Present Perfect and Present Perfect Continuous. Если действие уже завершилось и виден результат в настоящем, то это Present Perfect (have/has+третья форма глагола). Если это длительное действие, которое происходило раньше и, возможно, до сих пор продолжается, то это Present Perfect Continuous. Вот и всё))
1) Don't worry about the letter I have already posted it. (Не переживай о письме, я уже отправил его).
2) Nina has been learning English for 2 years. (Нина учила (и до сих пор учит) английский 2 года. 
3) She has been playing tennis since she was eight.
4) The birds have already flown to the South.
5) The train has just come.
6) She has been teaching at this school for twenty years.

3) I have been reading Tolstoy stories in the park for two hours.
4) I have read three stories.
5) Granny has been waiting in the living room since morning.
6) She has knit a sweater for me.
7) My sister has been skating since childhood.
8) She has taken part in many competitions.

1. When I saw Mary she was speaking to a person who didn't introduce to me.2. Why the book didn't bring yesterday?3. It was the first time I offered to go on a business trip to India.4. Mary was speaking on the phone while the coffee was make.5. When I entered the hall, Mary was showing the pictures.6. I wonder whether this house was built in 1700?7. I am sure this question will solve soon.8. Frankie didn't explain how to work with that equipment.9. Jane gave the new version of the agreement?10. Kate didn't see for a long time. Do you know where she was?11. Peter went to Kiev when he heared about Han’s wedding.12. Jane went to office when she was telling about Jane’s visit.13. Mark didn't finish the repot; although he has worked on it for 2 days.14. It’s the first time Jane invited to the international exhibition.15. Carl came to the office when the dispute about salary reducing taking place.16. Will the conference take place next month?17. Did the salary give ? – Not yet. It will have given in a few days.18. Alfred bringed to the new hotel, showed the room and asked to be ready for the evening meeting.19. Mark has known for a few months when he informed about his living the company.20. Kate had worked at HGT for 2 weeks when she has informed about its bankruptcy. 

Impressionism is a very natural stage of art’s (0) DEVELOPment.
Russian painters had started their (1) unHeard of experiments with light and modified colour schemes before they visited France and got acquainted with French impressionism. 
And yet, there is a difference between Russian and French impressionistic (2) Depiction in terms of their subject matter, light and colour scheme . 
As far as French artists were concerned, they portrayed life differently in (3) COMPARison to Russian painters. 
However, Russian impressionists never attempted to break away from (4)REALity. 
Strictly speaking, Vasily Polenov can be regarded as a path (5) BREAKer in this field. 
He was one of the first Russian painters who visited Paris in the 1870s and became (6) ENORMOUSly fascinated by impressionism. 
He didn’t abandon his own distinct painting style, but he made every effort to (7) FAMILIARize his students in Russia with his French findings and encouraged their own artistic explorations. 
Thanks to his (8) ENTHUSIAStic support, his like-minded contemporary artist Konstantin Korovin felt confidence to work differently. 
The Moscow School of Painting, Sculpture and (9) ARCHITECTure had never had landscape painting classes as this genre was seen as the one for amateurs. 
V. Polenov was the first to introduce such classes and he was (10) VIRTUALly besieged by students who wanted to paint nature.