——She is a nurse.A. Who is your mother?B. Is your mother a nurse?C. Where is your mother?D

问题补充：

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—She is a nurse.

A. Who is your mother?

B. Is your mother a nurse?

C. Where is your mother?

D. What does your mother do?

答案：

A. Who is your mother?

B. Is your mother a nurse?

C. Where is your mother?

(答案→)D. What does your mother do?

解析：当询问某人的职业时, 一般有三种句式: ① What do/does sb. do? ② What +be+sb.? ③ What’s one’s job(工作)？根据回答，她是护士，因此选D。