The poisoning of the world's land, air, and water is the fastest-spreading disease of civilisation. it probably produces fewer headlines than wars, earthquakes and floods, but it is potentially one of history's greatest dangers to human life on earth. if present trends continue for the next several decades, our planet will become uninhabitable.overpopulation, pollution and energy consumption have created such planet-wide problems as massive deforestation, ozone depletion, acid rains and the global warming that is believed to be coused by the greenhouse effect.the seas are in danger. they are filled with poison: industrial and nuclear waste, chemical fertilisers and pesticides. the mediterranean is already nearly dead; the north sea is following. the aral sea is on the brink of extinction. if nothing is done about it, one day nothing will be able to live in the seas.
1. People are talking a lot about this young actress →People are being talked a lot about this young actress
2. Why can’t you tell them the truth? → Why can’t they be told the truth?
3. What kind of explanation did they give you→ What kind of explanation were you given?
4. They have just shown us a new film→We’ve just been shown a new film
5. Have you written a letter to you? →Has a letter been written to you?
6. Have you written a letter to father? →Has a letter to father been written?
7. Will the teacher dictate the text to you? →Will the text be dictated to you?
8. They asked me a lot of interesting questions →I was asked a lot of interesting questions.
9. Everyone was listening to the speaker very attentively→The speaker was being listened to very attentively.
10. Did they offer you a good job?→Were they offered you a good job?
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