为什么全能总说my father is kingRT

为什么全能总说my father is kingRT This is my father and my mother.还是These are my father and my mother.总感觉一般不会这些是我的爸爸妈妈,而是会说这是我的爸爸妈妈,但是语法上说应该是后一个对吧? hello!Miss Gao .this is my father为什么不是hello!MissGao .he is my father Miss li,this is my father.为什么用this is this is my father and mother能不能这么说 My father is brotheris My father is a my father is a His father is my father.he is 改错Peter is a friend of my father.为什么? My father is a good (cook).怎么填,为什么 My father is a doctor.对doctor 提问是什么?为什么? My father is --------- (terrible)ill 这里填什么,为什么? my father is interested in photography为什么不用in the I work in this factory ,and so does my father.为什么用so does my fatherA so does my father B so my father does C so is my father Dso my father is My father's father is my（My father's father is my（ ） 为什么说王阳明是中国历史上罕见的全能大儒? He is my father,he is my ()