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    Only according to the directions can the medicine be quite effective. A. taking B. taken C. being taken D. having been taken 【查看更多】

     

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    Only __________according to the directions can the medicine be quite effective.    
    [     ]
    A. taking                        
    B. taken    
    C. being tak'en                  
    D. having been taken

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    Only when­­­­­­­­­­­­­­­­­___________ according to the directions can the medicine be quite effective.

    A. taking?????????? B. taken??????????? C. being taken??????? D. having been taken

     

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    Only ______according to the directions can the medicine be quite effective.

    A．taking

    B．taken

    C．being taken

    D．having been taken

     

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    Only           according to the directions can the medicine be quite effective .

           A．taking      B．taken       C．being taken     D．having been taken

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    Only______ according to the directions can the medicine be quite effective.

    A．taking                        B．taken                   C．being taken          D．having been taken

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