Раскройте скобки, употребив глагол в нужной грамматической форме. 1. The earth

Раскройте скобки, употребив глагол в подходящей грамматической форме. 1. The earth (to become) warmer than it (to be) for a thousand years. By the middle of the next century it (to be) warmer than it (to be) before the Ice Age. 2. The man-мейд agent (фактор) of climatic changes is the carbon dioxide that (to pour out) of the worlds chimneys (дымоходы) since the industrial revolution (to begin). 3. The great ice-caps of Greenland and Antarctic (to raise) sea-levels. The average sea-level already (to rise) a foot since the turn of the century. 4. About 200 years ago people (to begin) to burn fossil fuels. 5. Turbines (to design) to take as much energy from the moving water as possible.