根据句子的意思,写出所缺单词.(英语)

1.The brother of my father is my___uncle_____.
2.The father of my mother is my__grandfather___.
3.The mother of my father is my____grandma______.
4.The sister of my mother is my____aunt______.
5.The daughter of my mother is my___sister_____.
6.Ony day ,the big rabbit said to the small rabbit ,“You are my son .” The small rabbit said ,“But you are not my father.”Who's the big rabbit?____She is the small rabbit's mother.____

1/ uncle
2/ grandfather
3/ grandmother
4/ anty
5/ sister
6/ father

1.Uncle
2.gradefather
3.grademother
4.aunt
5.the small's mother