So frightened was she in that she didn't dare to move an inch.的结构是什么

问题描述:

So frightened was she in that she didn't dare to move an inch.的结构是什么

So frightened was she (in 这个in应该删去) that she didn't dare to move an inch.
这是so.that.结果状语从句句型的倒装句,把so放句首,句子要部分倒装.