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				       fine mornings, old people get together and do exercise by the lake.A.  On          B.  At       C.  To       D.  In			【查看更多】
			


		
           
          


		
          
		
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          _____ fine mornings, old people get together and do exercise by the lake.     
          

          [     ]
          A. On 
          B. At 
          C. To 
          D. In
          

			
          
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          __________fine mornings，old people get together and do exercise by the lake．
          


          　　A．On　　B．At　　C．To   D. In
          

			
          
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