[[求助与讨论]] multiple choice

发表于 2008-1-22 18:39:44 | 显示全部楼层 |阅读模式

Although he has lived with us for years, he ___ us much impression. （2004年上海春季卷）
  A. hadn’t left
  B. didn’t leave
  C. doesn’t leave
  D. hasn’t left

I’m confused by this problem. I can hardly tell any differences between C and D. Could you do me a favor?

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