About 100 years ago, ten percent of the world’s population lived in cities. by 2008. however, half of the world’s population lived in cities. • in your opinion, why has this change occurred? • is this change a positive or negative development? explain. • where do you think most people will live in the future: in cities, in suburbs, or in the countryside? why?
2.i think that negative, because prople buys car and fuel makes air very durty.
3. I think, that in a future about half World's population will be leave in a countryside, because people will be find fresh air.
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Как-то так