一道高中英语语法Tom and Tim are twin brothers. They look exactly alike, only in height

Question

Tom and Tim are twin brothers. They look exactly alike,_____ only in height(difference)
为什么是differing 而不是different 。 主要解释为什么不是different

Answer 1

非谓语动词，differing做伴随状语。
different形容词一般不用作状语。