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.

我听到脚步声在长长的走廊里回荡。

I heard footsteps echoing in the long ___corridor.