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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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