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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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