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    Not until ________ the Internet ________ that the Chinese sailors were rescued by the European Union Task Force.

    A．did I surf; did I know B．did I surf; I knew

    C．I surfed; did I know D．I surfed; I had know

     

    C

    【解析】C　考查倒装。句意：直到我上了网才知道中国海员被欧盟工作组救了。not until引导的时间状语从句位于句首时，从句不倒装，主句倒装。故C项正确。

     

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