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				28．--How about doing some  sit-ups?--        ．A．They are exciting               B．They are  too hard for meC．Good idea                  D．Well done			【查看更多】
			


		
           
          


		
          
		
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          --How about doing some sit-ups?
            
          -- _______．
            
          A．They are exciting                           B．They are too hard for me
            
          C．Good idea                                D．Well done
          

			
          
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