I'm not sure what I should do改为同义句?

问题描述:

I'm not sure what I should do改为同义句?

I'm not sure what I should do改为同义句
I'm not sure 【what to 】do.
我不确定该做什么?为什么用to do ?在宾语从句中,特殊疑问词+ 主语+ 谓语动词,可以缩写为特殊疑问词+to+谓语,比如:I don't know how I can go there.=I don't know how to go there.