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          ______of the water_____polluted. We must try to protect our environment.
          A．Two third; areB．Two third ; is
          C．Two thirds; areD．Two thirds ; is
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          

          解析試題分析：句意：三分之二的水被污染了，我們必須保護(hù)我們的環(huán)境。分?jǐn)?shù)的表示是：分子用基數(shù)詞，分母用序數(shù)詞；分子超過(guò)一，分母要用復(fù)數(shù)形式。Water做主語(yǔ)，謂語(yǔ)動(dòng)詞用單數(shù)。故選D。
          考點(diǎn)：考查分?jǐn)?shù)和主謂一致。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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