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    ( ) Light bulb which was invented by Edison now. A. was widely used B. is widely used C. will be widely used D. used widely 【查看更多】

     

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    Light bulb which was invented by Edison _________now.       
    [     ]
    A. was widely used          
    B. is widely used
    C. will be widely used        
    D. used widely

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    Light bulb which was invented by Edison ________ now．

    [　　]

    A．was widely used

    B．is widely used

    C．will be widely used

    D．used widely

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