—What do you think of the film you saw yesterday? —Oh! Its one of films Ive ever seen.A.

—What do you think of the film you saw yesterday?
—Oh! It's one of films I've ever seen.
A. interesting
B. more interesting
C. most interesting
D. the most interesting

A. interestingB. more interestingC. most interesting(答案→)D. the most interesting解析：句意：这是我曾经看过的最有趣的电影之一，“最……之一”应是“one of +the 形容词最高级+名词复数”，因此此题选D。

就是这个解释