Sally is       than her twin sister.

        A. clever      B. the more clever     C. cleverer     D. the cleverest

Mary is ____ than her sister .

A. funnier　　B. fun　 C. more funnier 　D. funny

Mary is ________ than her sister．

1. A.
   funnier
2. B.
   fun
3. C.
   more funnier
4. D.
   funny

     Sally is busy ______ her homework.