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				 A. shouldn’t    B. mustn’t         C. couldn’t        D. needn’t			【查看更多】
			


		
           
          


		
          
		
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          --Lily said she couldn't lend you her bike until tomorrow.
            
          --She________ . I have already borrowed one
            
          A. couldn't      B. mustn't         C. shouldn't      D. needn't
          

			
          
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           —You  look tired.
              
          —Yes, I ____ sleep last night.
              
          A.  needn’t           B.  shouldn’t          C.  mustn’t               D. couldn’t
              
          

			
          
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          Though he explained it carefully, I ________ understand him．
          

          

          [　　]
          

          A．couldn’t
          

          

          B．mustn’t
          

          

          C．shouldn’t
          

          

          D．needn’t
          

          

          

			
          
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          —Must I finish my home work today?
            
          —No, you _____. You may finish it tomorrow.
            
          A．mustn’t              B．shouldn’t              C．needn’t               D．couldn’t
          

			
          
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          — Must I finish that work today?
          


          — No, you _____. You may finish it in three
days.
          


          
 
          
  
  
          A．mustn’t
          
            		
  
  
          B．needn’t
          
            		
  
  
          C．shouldn’t
          
            		
  
  
          D．couldn’t
          
            		
 
          

          


           
          

			
          
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