3 Read the text again and write true or false. Correct the false
sentences.
1 21 people met at the
Earth Summit
2 Sustainable development
means environmentally
friendly development
3 Using public transport is
better for the environment
than driving
4 It's difficult to contribute to
Local Agenda 21.
5 Local Agenda 21 can only
be successful if a lot of
people help
6 People don't need the help
of local councils.​

Объяснение:

1/ If the weather is good tomorrow, I will go to the beach

2/ If the weather was good, I would go to the beach

3/ If the weather had been good, I would have gone to the beach

1/ If you become a professional sportsman, you will acquire self confidence

2/ If you became a professional sportsman, you would acquire self confidence

3/ If you had become a professional sportsman, you would have acquired self confidence

1/ If I study hard, I will pass my exams

2/If I studied hard, I would pass my exams

3/ If I had studied hard, I would have passed my exams

1. When he arrived to the village it was getting to dark.

2. We were watching TV when Tom entered the room.

3. A totally new control system is installing in the Underground.

4. They will be completing an important research work for June.

5. When i met him, he was working on his new novel.

6. Now this kind of work is organizing at their labortory.

7. Do you understand what she is saying?

8. They were having lunch when I came into the room.

9. The work is doing now and soon it will be finished.

10. The plans of the next year will be discussing at last meeting.