求英语句型转换答案

题目

求英语句型转换答案
My aunt didn't give me a bike on my birthday.(改为被动语态）
The room is quite large.It can hold so  many people.(用不定式改写句子）
I  really  don't know  what I shold write to him.(改为同义句）
I  really  don't know —— —— ——to  him.
We  will  go  home  after  we get  it back. .(改为同义句）
We ___ go  home  ___  we get  it back.
My little sister is so young that she can't dress herseif  yet..(改为同义句）
My little sister is___ young___dress herseif  yet.

答案

I wasn't given a bike by My aunt on my birthday.
The room is quite large to hold so many people.
what to write
won't until
too to