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				 ―We can go to the zoo by bus.  ―Why not         there for a change?  A.  walking   B. to  walk        C.  walk             D.  walked			【查看更多】
			


		
     
    


		
    
		
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    —We can go to the zoo by bus.
    —Why not ______ there for a change?
    

    [     ]
    A. walking 
    B. to walk 
    C. walk 
    D. walked
    

			
    
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