——Do you know ___she works out the difficult problem?——with the help of her mother,I think.说说语法,

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——Do you know ___she works out the difficult problem?——with the help of her mother,I think.说说语法,
——Do you know ___she works out the difficult problem?——with the help of her mother,I think.
说说语法,

——Do you know ___she works out the difficult problem?——with the help of her mother,I think.说说语法,
填how
其实这个不是语法的问题.
首先你看问题,Do you know一个插入语可以省略不看,重要的部分是___she works out the difficult problem?----with the help of her mother,I think.(我觉得是通过她妈妈的帮助)
“with the help of her mother"就是对上面那个____部分的一个说明回答.
连起来就是 I think she works out the difficult problem with the help of her mother.那"with the help of her mother”相当于就是她解决问题的一种方式,对方式提问肯定就是“用什么样的方式”也就是“怎么样”,所以答案是how

用how ,表示对解决问题方法的询问。因为根据回答，with the help ..在......的帮助下
你知道他是如何做出拿到难题的吗？
我认为，是在他妈妈的帮助下。

work out 解决，算出
with the help of sb=with sb's help 在某人的帮助下

how 从回答者说的话来看，是在问如何解决这个难题的语法嘛，Do you know 连词＋主语谓语宾语（都有），这个连词，只能是连接副词 when 问时间，

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