句型转换。 1. Those are my parents. (改为一般疑问句) _____ _____ _____ parents? 2. They are my aunts. (改为否定句) _____ _____ my aunts. 3. That's my sister. (对画线部分提问) _____ is _____ ? 4. This is my mother and this is my father. (改为同义句) These_____  my _____ . 5. Is that your brother? (作否定回答) _____ , _____ _____ 6. This is my friend. (改为复数形式) _____ _____ my _____ . 7. Is the girl Mary? (作肯定回答) _____ , _____ _____ . 8. These are his brothers. (改为否定句) _____ _____ his brothers.