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				41．A．can't          B．needn't         C．mustn't          D．don't			【查看更多】
			


		
           
          


		
          
		
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          —Must I finish the work today?
          


          —No, you    .
          


          A．can’t            B．mustn’t          C．needn’t         D．don’t
          


           
          

			
          
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          —Must I come back before supper, mum?
          


          —No, you       .
          


          
 
          
  
  
          A．can’t
          
            		
  
  
          B．mustn’t
          
            		
  
  
          C．don’t
          
            		
  
  
          D．needn’t
          
            		
 
          

          


           
          

			
          
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          You needn't send for the doctor. I'm all right now.
          

          [　　]
          

          

          A．don't have to
          B．mustn't
           

          C．a(chǎn)ren't able to
          D．can't
           

           

          

			
          
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          Don't worry．It's nothing serious at all and you _________ take any medicine．
            
          A．can't         B．shouldn't           C．mustn't           D．needn't
          

			
          
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          Must I clean the house today？
           

          No, you________.
           

          [　　]
          

          

          A．can't
          B．mustn't
          

          C．needn't
          D．don't
          

          

          

			
          
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