what i should 为什么同义句是what to do

问题描述:

what i should 为什么同义句是what to do
I don't know what i should do with the broken bike.(同义句转换)
=I don't know what to do with the broken bike.

说的没错,两种不同的语言材料
what i should do with the broken bike 是宾语从句
what to do with the broken bike 是带疑问词的动词不定式作宾语