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    A beam of light will not bend round corners unless to do so . A. made B. having made C. being made D. to be made 【查看更多】

     

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    A beam of light will not bend round corners unless______to do so with the help of a reflecting device .  A.having been made       B.being made       C.made      D. you make 

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    A beam of light will not bend round corners unless ________ to do so with the help of a reflecting device．

    [　　]

    A．having been made

    B．being made

    C．made

    D．been made

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    A beam of light will not bend round the corners unless ________ to do so with the help of a reflecting device．

    [　　]

    A．being done

    B．to be made

    C．made

    D．having made

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    A beam of light will not bend（弯曲）round corners unless ________ to do so with the help of a reflecting device（反射装置）．


    1. A.
      made
    2. B.
      being made
    3. C.
      having made
    4. D.
      to be made

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