. It is for anyone to choose good friends.A. the most important B. too important thingC.

问题补充：

. It is for anyone to choose good friends.

A. the most important

B. too important thing

C. a most important

D. most important

答案：

A. the most important

B. too important thing

C. a most important

(答案→)D. most important

解析：短语辨析。the most important特指某个最重要的事物；too important thing太重要，有点超常的重要； a most important泛指任何一个重要的事物； most important最重要。句意：对任何人来说选择朋友都很重要。结合语境可知be动词后缺少表语，故选D。