The problem was too difficult for me to work out.改为复合句

问题描述:

The problem was too difficult for me to work out.改为复合句
The problem was_difficult_I_work_out.

这是一个 too……to……的句型,表示太怎么而不能怎样,我们可以用so……that……的组合来将其改为一个结果状语从句,也就是复合句中的一种:
The problem was so difficult that I couldn't work it out.