He is at least as tall as his brother if not A. tallB. tallerC. so tallD. the taller

问题补充：

He is at least as tall as his brother, if not ．

A. tall

B. taller

C. so tall

D. the taller

答案：

A. tall

(答案→)B. taller

C. so tall

D. the taller

解析：考查状语从句的省略。补充完整：He is at least as tall as his brother, if he is not taller than his brother ．句意：他至少和他的弟弟一样高，如果不是更高的话。选B.