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				22．Ricky caught a bad cold  yesterday.        he had to  stay at home．A．because        B．but           C．or             D．so			【查看更多】
			


		
           
          


		
          
		
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          Ricky caught a bad cold yesterday，              he had to stay at home．
            
          A．because               B．but                      C．or                          D．so
          

			
          
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