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          storm，without，either，die，terrible
          Sixty-five million years ago，a large minor planet(小行星)suddenly hit the earth. What a 1    hit！It caused big fires， 2    ，acid rain，and even earthquakes and volcano eruptions(火山爆發(fā)).The hit produced a lot of dust. It flew up into the air and kept the sun away for months- The earth became very cold 3     sunlight. The plants died first. Then the grass-eating animals 4     because of no food. Then the meat-eating animals could not find food， 5     . They began to eat each other. What a sad story！
          1._______ 2.________ 3.________ 4.________
          			
          


			
		
          
		
				
          
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