◎ 题干
–Would you like to watch the three-D film Titanic with me?
--Certainly. I don’t mind seeing it again although I _____ it twice.
A.sawB.was seen
C.have seenD.had seen
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“–Would you like to watch the three-D film Titanic with me?--Certainly. I don’t mind seeing it again although I _____ it twice.A.sawB.was seenC.have seenD.had…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。