他应该立即报告了这起事故。

He should have ___reported the accident immediately.

你向技术人员报告了故障吗？

Have you ___reported the fault to a technician?

当然我在火车站报告了此事，但他们在搜查火车时找不到。

Of course I ___reported it at the train station, but they couldn't find it when they searched the train.