问题
选择题
.--- 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
答案
答案：C
题目分析：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。