设计好之后可以删掉这个文本框哦,Unit Two,My Family,B Lets talk,Hello, Liu Xing. Whos that man,Hes my father,Whos that woman,Shes my mother,Whos that man,Hes my grandfather,Whos that woman,Shes my grandmother,Whos that girl,Shes my sister,Whos that boy,Hes my brother,Is he your father,Yes, he is,Is he your father,Yes, he is,Is he your father,No, he isnt,Is he your father,No, he isnt,Is he your grandfather,Yes, he is,Is he your brother,Yes, he is,Is he your brother,No, he isnt,Is she your mother,Yes, she is,Is sh