Question

.--- Is your sister a factory  worker or a doctor?
--- ________________.

A．Yes, she is

B．No, she isn’t

C．A factory worker

D．Yes, she is a doctor

Answer 1

C

试题分析：根据or可知，本句是一个选择疑问句，不能用yes或no回答，故应将ABD排除。所以本题选C。
点评：本题会容易和一般疑问句相混淆，回答选择疑问句必须回答其中一者，如本句中或者回答a factory  worker 或回答 a doctor。