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				22．You       return  the book now. You can keep it till next week.A. should         B. mustn’t     C. needn’t        D.  may			【查看更多】
			


		
           
          


		
          
		
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          You _______ return the book now. You can keep it till next week. 
          

          [     ]
          A. should 
          B. mustn't 
          C. needn't 
          D. may 
          

			
          
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