作者共发了4篇帖子。
I haven't finished my homework yet.
1楼 OCTOPUS 2011-11-19 23:18
2楼 OCTOPUS 2011-11-19 23:21
Perhaps my math homework has finished already.
3楼 OCTOPUS 2011-11-19 23:26

回复：2楼

No! I only finished a math paper. But there are other math homework didn't finished.
4楼 OCTOPUS 2011-11-19 23:51

回复：3楼

Correction: I have only finished a math paper. But there's some other math homework that hasn't been finished.

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