改错I'm so tired and I couldn't walk any further

改错I'm so tired and I couldn't walk any further
改错I'm so tired and I couldn't walk any further

改错I'm so tired and I couldn't walk any further
and-that ,so……that…… 如此……以至于……
我是如此累以至于我不能再走了

couldn't改为can't
表现在的能力用can 不用could 表猜测可用could

and 改为 that
so ……that 表示 如此……以至于……
固定用法

I'm so tired that I couldn't walk any further.
so...that....是固定用法,意思是:如此....以至于....