We are disappointed _________ the buyer's disregard ______ prope

We are disappointed _________ the buyer's disregard ______ proper international tradinrules.
【正确答案】：at, for
【题目解析】：【考点点击】本题主要考查的知识点为有关介 词搭配的使用。【要点透析】in a disappointed at sth.表示“对.............失望”。