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				30．Sandy is so careful that she      makes mistakes in her homework．A．usually     B．seldom        C．often       D．a(chǎn)lways			【查看更多】
			


		
           
          


		
          
		
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          Sandy is so careful that she ________makes mistakes in her homework．
            
          A．usually           B．seldom          C．often              D．a(chǎn)lways
          

			
          
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