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          To everyone’s surprise , Alex _____ play chess very much when he was only four .
          A．mightB．shouldC．canD．could
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D

          試題分析：might可以，或許；should應(yīng)該；can能，能夠；could，can的過去式。句意：令所有人吃驚的是，當(dāng)他只有四歲時，阿歷克斯就非常會下棋。結(jié)合語境可知下文描述的是過去的動作，故助動詞用過去式，選D。
          點評：英語中的時態(tài)主要是借助于時間狀語與上下文語境來進行判斷。解答此類題型，首先要注意句子中的時間狀語，如果沒有則要通過分析上下文，結(jié)合語境來判斷句子的時態(tài)。英語疑問句中一般具有時態(tài)上的對應(yīng)關(guān)系，注意結(jié)合這一特點進行區(qū)分。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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