◎ 题干

If a thing is worth ______, it must be well ______.
A.doing; doneB.to do; doingC.to do; doneD.being done; doing
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“If a thing is worth ______, it must be well ______.A.doing; doneB.to do; doingC.to do; doneD.being done; doing…”主要考查了你对  【动词短语】【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。