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				 I left my umbrella in my room. Could  you wait      I go back to get it?   A. when       B. if       C. while     D. before			【查看更多】
			


		
           
          


		
          
		
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          I left my umbrella in my room.Could you wait _____ I go back to get it?
          

          [     ]
          A.when       
          B.if       
          C.while       
          D.before
          

			
          
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          I left my umbrella in my room. Could you wait _____ I go back to get it? 
          

          [     ]
          A. if 
          B. before
          C. while 
          

			
          
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           I left my  umbrella in my room. Could you wait _____ I go back to get it?
              
          A. when             B.  if                        C.  while                  D.  before
              
          

			
          
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          I left my umbrella in my room. Could you wait ________ I go back to get it?
          

          [　　]
          

          

          A．when
          B．if
          

          C．while
          D．before
          

          

          

			
          
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           I left my
umbrella in my room. Could you wait here_____ I go back to get it?
          


             A.
when     B. if      C.
while     D. before
          


           
          

			
          
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