I don't know .Did Jack finish his homework?(改宾语从句）I don't know _______ Jack finished his homework.怎么改?为什么?

I don't know. i don't know what i did wrong还是what wrong he did “i don't know you know i don't know i don know what did i Why she didin't come to the party last night.I don't know shy she didn't.I don't know shy she did.哪一个对为什么 sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her i don't know anything Hello Lucy!I _____ know you ______in Beijing.A don't are B did't are C did't were D don't were 选哪个?为什么? I don't know, how much did the book cost.改为宾语从句,谢了