HIS STDUDY IS IN FIRST PLACE IN CLASS 请问这个HIS怎么不是HE?HIS和HI 有什么区分啊

HIS STDUDY IS IN FIRST PLACE IN CLASS 请问这个HIS怎么不是HE?HIS和HI 有什么区分啊 what is his fir st name怎么回答 The Spring Festival is the most important traditional one in China.As an important part of it,fir His room is in a birthday,his,in,is,november is there abag in his he is in his early Unintended,I fell in love with you at the fir. There is an apple in his hand He is always in his words tom is reading books in his stady His father is ill in the hospital. __________________?yes,his birthday is in december. He is the best in his class. Mr.William is( ) work in his office Oh,he m___ is in his office His pencil box is in his schoolbag.(变一般疑问句) His baskball is in he box 对His basketball提问