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    14．Coal is used us warm． A．to keep B．to keeping C．for keeping D．kept 【查看更多】

     

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    ----- Are you used to______ in the north with the old couples?

       ----- Yes, I am glad to find out that coal is used______ electricity for home use.

    A. live; to produce    B. living; to produce   C. to live; produce   D. living; producing

     

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    Coal is used to producing electricity.

     

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    ----- Are you used to______ in the north with the old couples?
    ----- Yes, I am glad to find out that coal is used______ electricity for home use


    1. A.
      live; to produce
    2. B.
      living; to produce
    3. C.
      to live; produce
    4. D.
      living; producing

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    ----- Are you used to______ in the north with the old couples?

       ----- Yes, I am glad to find out that coal is used______ electricity for home use.

    A. live; to produce    B. living; to produce   C. to live; produce   D. living; producing

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    ----- Are you used to______ in the north with the old couples?
    ----- Yes, I am glad to find out that coal is used______ electricity for home use.

    A．live; to produceB．living; to produceC．to live; produceD．living; producing

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