6. Her cat is the ______ of the two.

A. pretty                            B. prettily                          C. prettier                          D. prettiest

7. Peter is ______ than John.

A. younger and more intelligent                                  B. more young and intelligent

     C. more intelligent and younger                                  D. the more intelligent and younger

8. In my class, Mai speaks English ______.

A. fluent                            B. more fluent                   C. most fluently                D. more fluently

9. Tom runs ______ than John and David.

A. faster                             B. most fast                       C. fastest                           D. more fast

10. Cinderella danced ______ than any other girls at the ball.

A. more graceful                B. graceful                         C. gracefully                      D. more gracefully