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				44．A．while         B．since          C．until          D．a(chǎn)s			【查看更多】
			


		
           
          


		
          
		
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          I’ll go to visit my aunt in England _____ the summer
holidays start..
          


          A．while             B．since.             C．until             D．a(chǎn)s soon as
          


           
          

			
          
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          I tried to call you ________ I heard from him, but you were not in.
          

          [　　]
          


          

          

          A．since
          		


          B．while
          		


          C．until
          		


          D．as soon as
          		

          

          

          

			
          
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          I tried to call you ________ I heard from him, but you were not in.
          

          [　　]
          
          

          

          

          A．since
          		


          B．while
          		


          C．until
          		


          D．as soon as
          		

          

          

          

			
          
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          ________ my parents were watching TV, I was playing a new computer game．
          

          

          [　　]
          

          A．

          Since
          

          

          B．

          While
          

          

          C．

          Until
          

          

          D．

          As
          

          

          

			
          
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          I tried to call you ________ I heard from him, but you were not in．
          

          

          [　　]
          

          A．

          since
          

          

          B．

          while
          

          

          C．

          until
          

          

          D．

          as soon as
          

          

          

			
          
				查看答案和解析>>
			
          
		
          
						
          
				
          
	
          
	
          
		
          


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