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           -When did your computer go wrong?
           -Last night, while I_______ some music from a website.
          A．downloadedB．a(chǎn)m downloading
          C．was downloadingD．have downloaded
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C

          試題分析：句意：你的電腦何時(shí)出了問(wèn)題？昨晚，當(dāng)我從網(wǎng)站上下載音樂(lè)時(shí)。表示過(guò)去某一時(shí)刻正在發(fā)生的動(dòng)作用過(guò)去進(jìn)行時(shí)態(tài)，所以選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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