◎ 题干
My grandparents have _____ the great changes in China _____.

A. saw, him
B. seen, them
C. seen, themselves
◎ 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“My grandparents have _____ the great changes in China _____.[ ]A. saw, him B. seen, them C. seen, themselves …”主要考查了你对  【反身代词】【实义动词的过去分词】【现在完成时】  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。