teachers said they would return to the profession if they had it all to do again.had it all to do again 的语法to do 什么成分修饰谁 all呢?

问题描述:

teachers said they would return to the profession if they had it all to do again.
had it all to do again 的语法to do 什么成分修饰谁 all呢?

had to do it all /重做
后部分是个倒装句