This is my Father中,F一定要大写吗?为什么,不大写和大写有什么区别?

This is my Father中,F一定要大写吗?为什么,不大写和大写有什么区别? This is my father and my mother this is my father .my father 画线,并提问. My f( ) father is my math teacher. this is my father,的中文意思 This is my father()改为否定句 ___is this?It is my father. this is my father yellow shirt 改错 This is my father.Where is_____?(you) this is my father.改为一般疑问句, My f father is my math teacher 中第一个F后面应该填什么 This is my father‘s father.（写同义句） Miss li,this is my father.为什么用this is This is my grandfather.He is my (parents') father.对不对 ?! THIS IS MY UNCIE .THAT IS MY FATHER合并成一句 把my,father,mother,this,is,father,my,ahd,this,is连词成句 （ ）picture is this?It is my father is. My f father is my math teacher f填什么