he is no longer what he used to be

翻译：He is no longer what he used to be. he is no longer what he used to be He is no longer who he used to be.为何不可?（原题TOM is no longer ____he used to be.）He is no longer what he used to be.He is no longer the person who/that he used to be.以上两个句子均正确那为什么He is no longer who he used to he is no longer a maths teacher He is no longer in my是什么意思 he is no longer what he uesed to be中what作什么成分,有什么作用 缺表语用what提问对吗?Dr.Smith is no longer ----used to be.A what he isB what he C how he isD how he is Tom has changed a lot.He is no longer ______(what/who)he used to be.为什么不用who? to our surprise,the naughty boy填 what he used to be对吗the naughty boy is no longer TOM is no longer ____he used to be.He has changed a lot.A.what B.whomC.that D.which 改错.Our hometown is no longer what it used to. He is no longer aspoilt c___ 首,字母已给 He is no more a student.You are no longer a childHe is no longer a student为什么不行? No longer is there this is no longer Lucy is no longer a lazy boy ( what ) he used to be .这是一个单选,WHAT怎么解释?从语法方面可否较清晰的解释? My father is over 60 years old,he is ----------a teacher.A.no longer B.not longer C.no more he is ________here.he passed away three years ago.空白处是填no longer 还是no more