急!!英语问题!!(请在3小时内给出答案!)

I don't know what to do next.(wh疑问词和how加to do sth可作名词使用）
It is Chinese that you should help her with.（强调句型it is... that..这里强调的是Chinese，若想强调其他成分可以套这个句型，可能需要适当变换句子结构）

i konw nothing about what to do net.
Do help her with her Chinese.

I am not sure what I should do later.

Do help here with her Chinese

I'v no idea what I should do next.

Do help her with her Chinese.

I dont know what to do next
do help her with her chinese

I have no idea what i should do next.

It's her Chinese that can help her.