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				26．As students, we are supposed  to spend as much time as we could        ．A．study        B．studied        C．studying       D．to study			【查看更多】
			


		
           
          


		
          
		
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          As students, we are supposed to spend as much time as we could _______．
            
          A．study                B．studied               C．studying              D．to study
          

			
          
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