小测验：选择正确的单词

1. Each office opens onto the corridor.
   每间办公室的门都对着走廊。
2. The corridor is terminated with a staircase.
   走廊末端是楼梯。
3. There were people up and down the corridors.
   火车信道上到处都是人。
4. The lady' room is down the corridor on the right .
   "女洗手间"在过道的右侧。
5. There was a ring of laughter in the corridor.
   走廊里传来响亮的笑声。

　1个名词解释