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I'm sorry. I've left so many questions _____(unanswered, to answer) 应该选哪一个

分类: 作业答案 • 2021-12-31 14:02:45

问题描述：

I'm sorry. I've left so many questions _____(unanswered, to answer) 应该选哪一个

答

unanswered
可以理解为下面形式：leave sth.undone