This question is _____ than that one.
A. easyer
B. more easy
C. easy
D. easier
The girl is ____ than her mother.
A. beautiful
B. more beautiful
C. beautifuler
D. most beautiful
Lily is _____ of the three.
A. taller
B. tallest
C. the tallest
D. tall
I’m _____ than you.
A. strong
B. thin
C. thinner
D. thiner