请问I don't know what to do next.中的what to do next是宾语从句吗?为什么?

请问I don't know what to do next.中的what to do next是宾语从句吗?为什么?
请问I don't know what to do next.中的what to do next是宾语从句吗?为什么?

请问I don't know what to do next.中的what to do next是宾语从句吗?为什么?
分析一下吧
宾语从句首先是个句子,就是得有谓语动词.这个句子恢复一下 i don t know to d o what next.很显然动词不定式为非谓语动词,没有谓语,肯定不是句子.只是个不定式短 语做know的宾语.你看看这个句子 i don t know what i will do tomorrow.比较一下吧