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    How long do you think it will be we can find a new water source? A. after B. before C. when D. since 【查看更多】

     

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    How long do you think it will be ________ we can find a new water source?


    1. A.
      after
    2. B.
      before
    3. C.
      when
    4. D.
      since

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    How long do you think it will be _____ we can find a new water source?

    A. after             B. before                     C. when              D. since

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    30. How long do you think it will be _____ we can find a new water source?

    A. after             B. before                     C. when              D. Since

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    30．How long do you think it will be _____ we can find a new water source?

           A．after      B．before          C．when     D．Since

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    How long do you think it will be _____ we can find a new water source?

    A. after             B. before                     C. when              D. since

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