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          _____ the environment is important for human beings.
          A．Take care ofB．Taking care ofC．Took care ofD．Take the care of
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          考查動(dòng)名詞短語(yǔ)作主語(yǔ)，分析句子成分，這里需要填動(dòng)名詞做主語(yǔ)，謂語(yǔ)動(dòng)詞用單數(shù)形式。句意：保護(hù)環(huán)境對(duì)人類是很重要的。選B。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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