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          She kept _________ hard at her physics and finally caught up with us.  
          A．workB．workedC．workingD．to work
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C

          試題分析：句意：她在物理上繼續(xù)努力，最終趕上我們。keep doing一直做某事，根據(jù)題意，故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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