to do 不定式作定语就是要后置的呀.
第一句话 to be done 还涉及到了不定式的语态问题.在there be 结构中,当说话人考虑的是必须由人去完成的某件事情时,不定式用主动形式,即to do,如果说话人强调的事情本身必须完成,则用被动形式,即to be done.如,There is a lot of work to do.
=Somebody has to do the work.
There is a lot of work to be done.
=The work has to be done.
第一句话不定式修饰的是things.
第二句话不定式修饰的是her promise.