Question

My hometown is no longer ________．

1. A.
   what it used to be like
2. B.
   like it used to be
3. C.
   what is used to
4. D.
   what it used to be

Answer 1

D
what引导表语从句且在从句中作表语;句尾不定式符号to，后面的动词be和have不可省。