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           Fruit and vegetables are good for us. We need them __________ healthy.
          A．keepB．keeping C．to keep D．keeps
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C

          試題分析：句意:水果和蔬菜都對(duì)我們是有益的，我們需要它們來(lái)保持健康。這里的謂語(yǔ)動(dòng)詞need，動(dòng)詞不定式來(lái)作目的狀語(yǔ)，根據(jù)句意故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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