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				 You can not imagine the difficulty they had      the problem. It isn’t      easy.  A. to solve; so  B. solved; so  C. solving; that  D. solved; that			【查看更多】
			


		
           
          


		
          
		
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          You can not imagine the difficulty they had
____ the problem. It isn’t ____ easy.
          


          
 
          
  
  
          A．to solve; so
          
            		
  
  
          B．solved; so
          
            		
  
  
          C．solving; that
          
            		
  
  
          D．solved; that
          
            		
 
          

          


           
          

			
          
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          You can not imagine the difficulty they had ____ the problem. It isn't ____ easy. 
          

          [     ]
          

          A. to solve; so 
          B. solved; so
          C. solving; that 
          D. solved; that 
          

			
          
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           You can not imagine the difficulty they had ____ the problem. It isn’t ____ easy.
            
          A. to solve; so       B. solved; so        C. solving; that        D. solved; that
          

			
          
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          You can not imagine the difficulty they had ____ the problem. It isn’t ____ easy.
            
          A. to solve; so       B. solved; so        C. solving; that        D. solved; that
          

			
          
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          You can not imagine the difficulty they had ____ the problem. It isn’t ____ easy.
          A．to solve; soB．solved; soC．solving; thatD．solved; that
          

			
          
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