1. Last Sunday we went skiing in the country. There was already a lot of snow in the fields and we enjoyed ourselves. We were skiing for two hours and half.
2. They met at the station two hours ago.
3. Where did you spend last Sunday?
4. We were in a hurry because only twenty minutes were left before the beginning of the performance.
5. I was playing the violin when my friend came in. He invited me to the theatre and I accepted the invitation with pleasure.
6. He rang his friend and asked him about the homework.
1. Nowadays scientists worry about ecology and its meaning very much.
2. In summer people, especially children, are fallen under the ultraviolet radiation.
3. I don't like this water filter. I think, we should find another one.
4. There are so few places with the safe habitat.
5. The destruction of fish in this lake is really ecological problem.
6. What can cause the pollution of this power supply?
7. People can't imagine, how often they pollute the air, water and ground themselves.
8. The dump of rubbish is forbidden in this place.
9. The waste should be worked over by special plants.
10. The environment protection is really important question at this conference.
Объяснение:
1. Last Sunday we went skiing in the country. There was already a lot of snow in the fields and we enjoyed ourselves. We were skiing for two hours and half.
2. They met at the station two hours ago.
3. Where did you spend last Sunday?
4. We were in a hurry because only twenty minutes were left before the beginning of the performance.
5. I was playing the violin when my friend came in. He invited me to the theatre and I accepted the invitation with pleasure.
6. He rang his friend and asked him about the homework.