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				 Every year          of trees are planted on the hills  to protect the environment. A. a thousand   B.  thousands       C. thousand			【查看更多】
			


		
     
    


		
    
		
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    Every year ______ of trees are planted on the hills to protect the environment.

    1. A.
      a thousand
    2. B.
      thousands
    3. C.
      thousand
    4. D.
      the thousand
    

			
    
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    Every year _______ of trees are planted on the hills to protect      the environment.
    

    [     ]
    A. a thousand      
    B. thousands           
    C. thousand
    

			
    
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    Every year ________ of trees are planted on the hills to protect the environment.
    

    [　　]
    

    A．a(chǎn) thousand　　B．thousands　　C．thousand
    

    

			
    
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    Every year ______ of trees are planted on the hills to protect the environment.
    

    [　　]
    


    

    

    A．a thousand
    		


    B．thousands
    		

    

    

    C．thousand
    		


    D．the thousand
    		

    

    

    

			
    
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