◎ 题干
When I was in primary school, I had trouble ______complete sentences.
A.to make B.made C.making D.make
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“When I was in primary school, I had trouble ______complete sentences.A.to makeB.madeC.makingD.make…”主要考查了你对  【不定式】【分词】【动名词】  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。