The boy is not so(.)as his brother A.clear B.cleverC.taller D.shortest

问题描述:

The boy is not so(.)as his brother A.clear B.cleverC.taller D.shortest

选B.A clear意思是干净的、清楚的、明朗的,怎么用呢?用于物.(not)so ...as...以及 as...as...放在中间的词汇必须是形容词或副词的原形,不是比较级或*.