单数第三人称代词用法举例:He is an engineer. I see him every day. His father is an engineer， too. That blue car is his.段落里的最后一个his=his car。
2)作宾语时，也就是作及物动词、介词、形容词的宾语时，用宾格。They looked up and gave a smile to each other every few minutes. 每隔几分钟他们抬起头相互笑笑。
