根据对话内容，从方框中的六个选项中选出五个合适的句子补全对话。
A: ________
B: There are four — my mother, my father, my brother and I.
A: ________
B: No, he is a doctor.
A: _________
B: My mother is an English teacher in No. 8 Middle School.
A: ________
B: Yes, there are fifty students in her class.
A: _________
B: She’s 34 years old.

A. How old is she?        B. Is your father a teacher? C. What’s your mother?    D. Are there many students in her class? E. How many people are there in your family? F. Where does your father work?