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          —When did you buy this computer? It looks so new.
          —I         it for only a couple of days. My sister bought it for me as a birthday present.
          A．boughtB．have boughtC．have hadD．had
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          此題重點(diǎn)考查延續(xù)性動(dòng)詞的基本用法。Buy是非延續(xù)性動(dòng)詞，不能和段時(shí)間狀語(yǔ)連用，故用have。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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