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          ---Is Lucy ______ her homework?
          --- No , she ________ .
          A．do; doesn’tB．does; isn’tC．doing; isD．doing; isn’t
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D

          試題分析：根據(jù)Is可知，后面應(yīng)該用doing結(jié)構(gòu)，表示現(xiàn)在進(jìn)行時(shí)；根據(jù)Is可知，回答也應(yīng)該用is回答。所以本題選D。
          點(diǎn)評(píng)：做本題時(shí)應(yīng)注意be動(dòng)詞后面的動(dòng)詞的形式，是不能填原形的；回答be動(dòng)詞時(shí)，應(yīng)該也用be動(dòng)詞，而回答助動(dòng)詞時(shí)，應(yīng)該用助動(dòng)詞。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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