China is no longer what she used to beThe reason why I was sad was that he didn't understand me.这两个都是有表语从句,但为什么what前又不加be动词,that前就要加was?

英语翻译--------China is no longer -------- China of the past China today is no longer than the China of past.改错 No longer is there this is no longer China is no longer what it used to be为什么用whatno longer 怎样理解（成分） China is no longer what it used to be 为什么用what不用that? China is no longer （what） she used to be.为什么不能用how China is no longer ( )it used to be.A.what B.that this is no longer true no longer is a person but it is no longer China is no longer the China of the past.第二个China前面为什么要加the啊?是特指吗? china is developing so fast.It's ()what it used to beA.no longer B.not longer C.the same as D.like China today is (be) no longer what she was in the past.时态时态转换是否正确？ China today is no longer ________ it used to be.A. that B. which C. what D. where how do you like china very much.china is no longer( )it used be.A .that B.which C.what D.where he is no longer a maths teacher He is no longer in my是什么意思