◎ 题干
 I’m considering ________a washing machine, which is considered ________a great help to my wife. 
A.buying; to beB.buying; beingC.to buy; beingD.to buy; to be
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I’m considering ________a washing machine, which is considered ________a great help to my wife.A.buying; to beB.buying; beingC.to buy; beingD.to buy; to be…”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。