She told us such interesting a story that we all forgot about the time.

这句话不正确，应该为
She told us such an interesting story that we all forgot about the time.
也可说
She told us so interesting a story that we all forgot about the time.

有语病哦，应该是She told us such an interesting story that we all forgot about the time.
She told us so interesting a story that we all forgot about the time. 译为她给我们讲了个非常有趣的故事，以至于我们都忘了时间。

句子应改为 She told us such an interesting story that we all forgot about the time
此为 such that 句型 如此 以至于
她告诉我们一个如此有趣的故事以至于我们都忘了时间

她跟我们说了一个很有趣的故事，以至于我们都忘了时间

更正：把such改成so
解释：such an interesting a story = so interesting a story 如此有趣的一个故事