她的办公室在走廊的尽头。

Her office is at the end of the ___corridor.

监考员离开房间，沿着走廊走去寻求帮助。

The invigilator left the room and walked down the ___corridor looking for some help.

餐车位于火车上狭窄通道的尽头。

The dining car is located at the end of the narrow ___corridor on the train.