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				33．―Have you finished your  homework.Adson?―No.Not yet．―Then you           go out to play basketball．You must finish your  homework first．A．can't          B．mustn't        C．must           D．needn't			【查看更多】
			


		
           
          


		
          
		
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          —Have you finished your homework，Adson?
            
          —No，not yet．
            
          —Then you ________ go out to play basketball．You must finish your homework first．
            
          A．can't             B．mustn't            C．must                D．needn't
          

			
          
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