I know what should i do next(同义句)I know--------

问题描述:

I know what should i do next(同义句)I know--------

最简洁:I know what to do next.
较婉转:I know what I should do next.
I know what I need to do.
I know what I have to do.
I know what I ought to do.
I know what I planned to do.