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				19．Betty and Tony go to the same  school.but they are  in different         ．A．class            B．grade           C．grades          D．group			【查看更多】
			


		
           
          


		
          
		
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          Betty and Tony go to the same school，but they are in different ________．
            
          A．class               B．grade                C．grades              D．group
          

			
          
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