I don't know what to do next.改为宾语从句

问题描述:

I don't know what to do next.改为宾语从句
稍作解释

I don't know what I should do next.
what to do为疑问代词和不定式组成的短语,你需要把它还原成句子才算宾语从句
所以改成what I should do就可以了
都是我该干什么的意思