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           The stones are so heavy. How _____ they _____ to the top of the building without modern machines?
          A．do; liftB．did; lift
          C．were; liftedD．were; lift
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          

          解析試題分析：句意：這些石頭如此重，沒(méi)有現(xiàn)代工具它們是如何被舉到建筑物的頂部的呢？they代指的是石頭，石頭是被舉到建筑物的頂部，要用被動(dòng)語(yǔ)態(tài)。故選C。
          考點(diǎn)：考查動(dòng)詞時(shí)態(tài)及語(yǔ)態(tài)。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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