◎ 题干

I don’t allow __ in my drawing-room. I don’t allow my son __ at all.
A.to smoke; smokingB.smoking; to smoke
C.to smoke; to smokeD.smoking; smoking
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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 don’t allow __ in my drawing-room. I don’t allow my son __ at all.A.to smoke; smokingB.smoking; to smokeC.to smoke; to smokeD.smoking; smoking…”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。