Question

Now the city is not ________ it ________.

1. A.
   that; used to be
2. B.
   what; used to
3. C.
   that; was
4. D.
   what; used to be

Answer 1

D
现在这座城市不再是以前的样子了。第一空引导表语从句且作主语，用what,第二空可用was或used to be,表示“过去的样子”。