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				 --- Please tell me how many times         to the  Summer Palace.  ---  Only once.  A. have you gone  B. you have gone  C. have you been  D. you have been			【查看更多】
			


		
           
          


		
          
		
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          --- Please tell me how many times _______ to the Summer Palace.
            
          --- Only once.
            
          A. have you gone   B. you have gone    C. have you been   D. you have been
          

			
          
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