题目内容：

填介词He came into the meeting room and sit down ( ) my rignt

优质解答

填On,表示方位的介词in,on,to的区别
1.in表示A地在B地范围之内.如：
Taiwan is in the southeast of China.
2.to表示A地在B地范围之外,即二者之间有距离间隔.如：
Japan lies to the east of China.
3.on表示A地与B地接壤、毗邻.如：
North Korea is on the east of China.
4.off表示“离……一些距离或离……不远的海上”.如：
They arrived at a house off the main road.
New Zealand lies off the eastern coast of Australia.work hard:努力工作,动词+副词,只做谓语
working hard:是wor hard 的动名词,可以做主语eg:working hard will bring you success
hard working=hard work:名词eg:hard work(working)leads to success