He has finished his homework when his mom went home.
He has finished his homework when his mom went home.
那为什么说when 不可以和现在完成时用？
那为什么说when 不可以和现在完成时用？
英语人气：555 ℃时间：2019-10-19 17:14:41
优质解答
是的,把has 改成had.发生在过去的过去的动作要用过去完成时
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