一道与so...that...It was___difficult a problem ___ none of us worked it out.答案是so,that.为什么不是such,that呢?请说明理由.

下面网友回答得都很好。我就不说什么了。。。

记住so 后面跟形容词
Such后面是名词
要用such that 的话：
it was such a difficult problem that ....
答案有帮助还望及时采纳，
祝学习进步、 谢谢、

so+形容词+名词+that+句子；
such +a/an+形容词+名词+that+句子；
如果是such；应该是such a difficult problem+句子；
手机提问的朋友在客户端右上角评价点【满意】即可.

so difficult a problem
such a difficult problem