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				21．He spent three years              Chinese before he came to China． A．learned  B．to learn  C．learning  D．for learning			【查看更多】
			


		
           
          


		
          
		
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          (四川省2005)
          

          Jim spent three years ________ Chinese before he came to China.
          

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          A．learned
          B．to learn
          C．learning
          

          

          

          

			
          
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