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				24．Dad, this is Peter,          this is David. They are both my friends.A．so         B．but          C．a(chǎn)nd           D．or			【查看更多】
			


		
           
          


		
          
		
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          Dad, this is Peter, _______ this is David. They are both my friends.
            
          A．so            B．but            C．a(chǎn)nd            D．or
          

			
          
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