Itisnecessarythattheproblem____

发布时间:2020-07-27 23:06:03

It is necessary that the problem_______ at once.A.solvesB.should solveC.willbe solvedD.be solved

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D解析It is necessary (important,impossible,strange,natural, a pity,no wonder) that…主语从句中, should可以省略。
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