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          I have been ______ English _______ ten years.
          A. study; for      B. studying; since      C. studying ; for   
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          考查現(xiàn)在完成進行時。句意“我學英語已經(jīng)學了十年了。”有可能繼續(xù)學習下去，故用現(xiàn)在完成進行時，即have been doing sth.句型。Since不能加一段時間，for可以加時間段，故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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