Ex. 2 Complete the sentences, putting the verbs into the correct form. Translate them into
Russian
1. If we (to open) more national parks, we would save a lot of endangered animals.
2. If people hadn't thrown waste in the water, our seas (to be) cleaner.
3. If people had been more careful, pollution (not to kill) so many animals, birds and fishes.
4. If factories (to stop) to emit poisonous gases, air would be clean.
5. If we (to buy) only unpacked goods, it would be less litter around us.
Ex. 3
Find and correct the mistakes.
1. If we didn't polluted our planet, we would live without environmental problems.
2. If the enterprises haven't added their bad breath to the air, the "holes" in the atmosphere
wouldn't have appeared.
3. If people had taken care of wildlife, many species of animals would survived.
4. If the antipollution laws are stricter, the problems of ecology wouldn't be so serious.
5. If all countries protect the Earth from pollution, the planet would tell us “thank you”.​

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