Allhavebeentriedbutunsuccessful.Wehavetofinishourwork.A.mean;bythismeansB.means;inthismeansC.meanses;bythismeansD.meanses;

题目详情

All _______ have been tried but unsuccessful. We have to finish our work_____________.

A. mean; by this means B. means ; in this means

C. meanses; by this means D. meanses; in this means

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