【正文】
ese are boys. 5. Those are girls. 6. These are my pens. 7. Those are your keys. 8. These are erasers. 9. Those are ID cards. are red pens. Dave: This is my mother. Mom, this is Lin Hai. Lin Hai: Nice to meet you! Mom: Nice to meet you, Lin Hai. Dave: And these are my grandparents. Grandparents: Hi, Lin Hai. Lin Hai: Hello! Dave: And this is my sister, Mary, and this is my brother, Jim. UNIT 3 This is my sister father mother parents brother sister grandfather grandmother grandparents friend This is my/her/his … That is my /her/his… UNIT 3 This is my sister This is Jiang Qinqin’s family ph