句型转换。 1. She is my aunt.(改为一般疑问句,作否定回答) — _____she _____aunt? —_____ 2. We are good friends. (改为一般疑问句,作肯定回答) — _____ good _____? — _____. 3. My uncle is a policeman. (改为否定句子) My uncle _____a policeman. 4. They are my sisters. (改为单数句子) _____ my_____. 5. That boy is my brother. (改为复数句子) _____ our_____.