用所给词的正确形式填空.Have you done your homework yet?Not yet.I( ) (do) it.

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用所给词的正确形式填空.Have you done your homework yet?Not yet.I( ) (do) it.
用所给词的正确形式填空.Have you done your homework yet?Not yet.I( ) (do) it.

用所给词的正确形式填空.Have you done your homework yet?Not yet.I( ) (do) it.
我认为两种答案都对,haven't done 强调还没有做这个概念,而 am doing 是说马上要做,口语中常说的(这时现在进行时表将来的概念,例如I'm coming.I'm going to school).
客观地说,am doing更好一些,因为not yet已经包含了“没有做”这一层意思了.

am doing

应该是 "haven't do"
have 助动词
意思是 你做问你的作业了吗?
不,我还没做完
用的是现在完成时,现在完成时的结构是
主语+have 或者haven”t+动词的现在分词+其他。

am doing

haven't done