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        1. Sometimes I doubt whether it is worth_______so_________.
          A.to work;hardB.to work;hardlyC.working;hardD. working;hardly
          C

          試題分析:句意:有時(shí)我懷疑是否值得這么努力地工作。Be worth doing意為“值得做某事”;hard為副詞修飾動(dòng)詞work;故選C。
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