The leader of the school newspaper is presiding ____ a meeting.A.over B. on . 知道是用over,但为何

问题描述:

The leader of the school newspaper is presiding ____ a meeting.A.over B. on . 知道是用over,但为何

preside over 是一个动词短语,就是主持XX 的意思,算是固定搭配.