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          We had to be patient because it ________ some time ________ we got the full results.
          A．has been；sinceB．had been；until
          C．was；afterD．would be；before
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D
          解析　在“it＋be＋一段時(shí)間＋before/after/since＋從句”句型中，before從句中的動(dòng)作經(jīng)過(guò)一段時(shí)間后才會(huì)實(shí)現(xiàn)；after從句中的動(dòng)作發(fā)生后已經(jīng)過(guò)去了一段時(shí)間；since從句中的動(dòng)作完成后到現(xiàn)在已經(jīng)有一段時(shí)間了。結(jié)合題意可知，答案為D項(xiàng)。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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