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				 You know he is not going to let us leave early if  we        get the work done.  A.  can’t         B.  may not      C.  shouldn’t      D.  mustn’t			【查看更多】
			


		
           
          


		
          
		
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          You know he is not going to let us leave early if we ______ get the work done. 
          

          [     ]
          A. can't 
          B. may not 
          C. shouldn't
          D. mustn't 
          

			
          
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