根据对话内容选择合适选项。 A. What does she do? B. Where does she work? C. Is the woman your mother? D. a singer E. No, I don't. A: Hello. 1___________ B: Yes, she's my mother. A: 2___________ B: She's an engineer. A: 3___________ B: She works in an air-conditioner company. She likes drawing pictures. Do you like drawing pictures? A: 4___________ I like singing. I want to be 5___________.