Question

-Is your friend a doctor or a teacher?

-________.

1. A.
   Yes. She's a teacher
2. B.
   No, she's a doctor
3. C.
   He's a secretary
4. D.
   He's a doctor

Answer 1

D
选择疑问句不能用yes或no来回答，排除A与B，而C不是针对上面的问句。