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				31．―Tom Try your best.Don't           your parents          ．―Ok.I'll do my  best to work hard at my lessons．A．go.down         B．make.out      C．let.down       D．make.proud			【查看更多】
			


		
           
          


		
          
		
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          —Tom, try your best．Don't ________ your parents _________．
            
          —Ok，I'll do my best to work hard at my lessons．
            
          A．go，down                  B．make，out           C．let，down              D．make，proud
          

			
          
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