问题描述：
Our city has changed a lot,and now it is different from ____ a few years ago.
A.what it used to be B.that it used to be
C.which it was D.what it was
She is not the girl___ she used to be
A.whom B.who C.that D.what
为什么第一题选A 第二题选C ?
A.what it used to be B.that it used to be
C.which it was D.what it was
She is not the girl___ she used to be
A.whom B.who C.that D.what
为什么第一题选A 第二题选C ?
问题解答：
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