这家银行是本市最重要的金融机构之一。

This bank is one of the most important financial ___institutions in our city.

公立医院是我们社会中最重要的机构之一。

Public hospitals are among the most important ___institutions in our society.

选举是民主社会的核心制度之一。

Elections are one of the key ___institutions in a democratic society.