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				21．--      I water the flowers every day?--No.you needn't．You can  water them 3 times a week．A．Must          B．May          C．Need           D．Can			【查看更多】
			


		
     
    


		
    
		
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    --          I water the flowers every day?
      
    --No，you needn't．You can water them 3 times a week．
      
    A．Must                   B．May                    C．Need                     D．Can
    

			
    
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