一个英语更换词语意思不变的题目

问题描述:

一个英语更换词语意思不变的题目
I left the hotel.I met an old friend of mine.
请用ON把他修改.
要用ING形式连接

On leaving the hotel I met an old friend of mine.On:(also upon) at or immediately after the time or occasion of 就在某时或某场合(之后):On my arrival home/On arriving home I discovered the burglary....