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				 It      Mike and Mary who helped the old man several days ago.    A. was     B. were     C. are      D. had been			【查看更多】
			


		
           
          


		
          
		
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            It ____ Mike and Mary who helped the old man several days ago.
            
           A. was              B. were             C. are                D. had been
          

			
          
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          It ______ Mike and Mary who helped the old man several days ago.
            
            A. were      B. are      C. was     D. had been
          

			
          
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          It ________ Mike and Mary who helped the old man several days ago．
          

          

          [　　]
          

          A．was
          

          

          B．are
          

          

          C．were
          

          

          D．had been
          

          

          

			
          
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          It _______ Mike and Mary who helped the old man several days ago.
           

          [　　]
          


          A．was　　　B．are　　　C．were　　　D．had been
          

			
          
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