He is at least as tall as his brother, if not ．
A. tall
B. taller
C. so tall
D. the taller
网友回答
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.