When I hurried to the station,there happened ____ no bus at that _英语解答

When I hurried to the station,there happened ____ no bus at that time.选什么?WHY

人气：106 ℃　时间：2019-11-05 18:25:08

解答

to be这是一个there be句型的变形,happen to do是碰巧的意思,两相综合填to be