ОТ I. Put the verbs in brackets into the correct form of Past
Simple, Past Continuous, Past Perfect or Past Perfect Continuous Tenses.
1. The incident (to happen) the other day.
2. Her name was Helen. She (to be) a widow for fifteen years
and had no children.
3. When we (to leave) home, the rain already (to stop).
4. When I (to graduate) from the University my elder brother
(to work) for a foreign company for two years.
5. Yesterday I (to find) a book I (to look for) so long.
6. When you (to go) to the cinema last?
7. They (to live) in Canada for a few years and then (to move)
to Australia.
8. You (to wait) for half an hour before the taxi came.
9. All night long the stars (to glitter).
10. What you (to do) when I (to come in)?
11. When I (to leave) the university, it (to rain) heavily.
12. When John (to return) home, he (to see) his younger
brother who (to do) his homework.
13. Nick said that he (to write) all day and (not to eat) anything.
14. We (to work) in the garden for some hours when it began
to rain.
15. I (to see) Irene yesterday at the stores: she and Mr. Smith
(to have) a nice little talk.
16. Robert (to talk) to some of the other guests when Nick
(to come in).
17. She hoped I (to pay) for the tickets.
18. When we (to come) the plane (to take off).
19. By the end of last month they (not to complete) the experiment yet.
20. Ann’s grandfather (to found) his firm in 1901.

1. Some governments have been trying to protect the environment for twenty years.

2. Have you been working at the TV studios since May?

3. Bill has been thinking about getting a new car for months.

4. Lesley has not been living in Meg's flat since last Christmas.

5. You have been eating too much since our holiday in March.

6. We have been looking forward to seeing you for weeks.

7. What have you been doing since last summer?

8. I have not been learning Spanish for very long.

9. Thomas has been writing his History essay since Saturday morning.

10. Have you been waiting for me for hours?

Объяснение:

The Berezinsky Biosphere Reserve is a reserve located in the northern part of Belarus at a distance of 120 kilometers from Minsk in the direction of St. Petersburg. Located on the border of Vitebsk and Minsk regions. The center of the reserve is in the village of Domzheritsy, Lepel district. It was created for the protection and breeding of rare species of animals that are listed in the national Red Book. The total area is 85.2 thousand hectares. The Berezinsky State Reserve was established in January 1925 and became one of the first Soviet reserves.

During the Great Patriotic War and the German occupation, it was seriously damaged and in 1951 it was decided to liquidate the reserve, but in 1958 it was restored.

In 1979, the Berezinsky Reserve was given the status of a biosphere reserve.

Due to its biological diversity and the uniqueness of natural complexes, the reserve is of exceptional importance not only for Belarus, but for the whole of Europe as a whole. There are four types of ecosystems here: dense forests, swampy swamps, fast-flowing reservoirs and clear meadows. The main type are forests, occupying about 89% of the territory of the reserve.