i have no idea what to do with him.
3个回答

不能加about.I have no idea =I don't know

what to do with him在句子中作宾语

疑问副、代词+动词不定式的这类结构,可以改为宾语从句.

实际上,反过来说,含有宾语从句的句子,当主句和从句的主语一致时,宾语从句可以改为疑问副、代词+动词不定式,比如:

I have no idea what I will/can/should do with him.