为什么短语be friendly to sb,be devoted to sth形容词和名词之间要有介词?

为什么短语be friendly to sb,be devoted to sth形容词和名词之间要有介词? suppose sb./sth.(to be) +形容词 / 介词短语的结构与suppose sb./sth.to ha be exited about sth.Be senior to sb.Be devoted to sth中的介宾短语是 be+形容词和sb/sth 之间加什么介词 不定式做主语It+be+形容词+for sb.to do sth 和 It+be+形容词+of sb.to do sth be friendly to sb造句 用seem造句,比如seem to do sth,to be 加形容词,名词和介词还有seem that. be sth to sb be + adj +to + sth/sb 这中句式后面的接介词和宾短语做什么成分? be devoted to和devote be friendly with sb.和be friendly to sb. 有什么区别? be friendly with sb和be friendly to sb 有什么区别