分类：教育/科学-外语学习-英语考试
问题：请教一道英语题Chinaisnolonger___itusedt 
a  is  no  longer  ___it  used  to  be.请问___处应填什么？what  or  that?为什么？  谢谢
回答：用what
如果用that的话句子就要改为
china is no longer the one that it used to be

what = sth. that

再比如说
this is what I want you to do
等同于
this is the thing that I want you to do