12.  вставьте предлоги  with,about,  by,  from,  of,  on,  at,  of, about, from, —ecology deals … the relationships of man and na­ture.the whole world is threatened … an ecological catastrophe.all countries ought to join the efforts to save the earth … an ecological disaster.sustainable development is the one that doesn’t deprive future generations … the same type of op­portunities we have now.more than two hundred million people depend … the tropical forests for shelter and food.trees are being cut down … an alarmingly high rate.people are becoming more and more aware … eco­logical problems.pollution of water and air is one of the main prob­lems people are concerned … today.how can we protect our soil… further waste? if we don’t think hard of ecology we must be ready to face … the consequences.​

User5281    1   10.05.2019 15:42    27