◎ 题干
—How do you like Beijing, Mr Smith?
—Oh, I ___ such a beautiful city before.

A. don't visit
B. didn't visit
C. haven't visited
D. hadn't visited
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—How do you like Beijing, Mr Smith? —Oh, I ___ such a beautiful city before. [ ]A. don't visit B. didn't visit C. haven't visited D. hadn't visited …”主要考查了你对  【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。