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          As they get older, they continue     the hobby.
          A．doB．doingC．didD．a(chǎn)re doing
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B
          continue是謂語動詞，其后不可能跟do、did或are doing，故選B。continue doing sth.是固定搭配“繼續(xù)做某事”。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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