【高一英语】The meeting----over,we all left the room.

C.being.
这是独立主格结构.两个完整的分句之间必须用连词,如The meeting was over and we all left the room.这两个分句都有了主谓宾,是完整的句子,所以必须用连词连接.但题目中The meeting _____ over,we all left the room.两个句子没有连词,又不同主语,因而填being,The meeting being over作状语.独立主格结构用于两个分句不同主语又没有连词的情况.高二会详细讲的.