The boys are this year than they were last year.A. more tallB. more tallerC. much tallerD.

问题补充：

The boys are this year than they were last year.

A. more tall

B. more taller

C. much taller

D. most taller

答案：

A. more tall

B. more taller

(答案→)C. much taller

D. most taller

解析：句意：这些男孩比他们去年都高了很多。句中有than必须用比较级，much可以修饰比较级，表示“…的多”，故选C