◎ 题干
There are some health problems that,when ________ in time,can become bigger ones later on.                                                         (2013·浙江,19)
A.not treatedB.not being treated
C.not to be treatedD.not having been treated
◎ 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“There are some health problems that,when ________ in time,can become bigger ones later on. (2013·浙江,19)A.not treatedB.not being treatedC.not to be treatedD…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。