问题补充：
― Hello! May I speak to Mary please?
― . I will go and get her.
A. Speaking
B. Hold on, please
C. Hurry up, please.
D. I don’t know.
答案：
A. Speaking
(答案→)B. Hold on, please
C. Hurry up, please.
D. I don’t know.
解析：A. Speaking请说，我就是 B. Hold on, please 稍等一下 C. Hurry up, please.快点 D. I don’t know.我不知道；句意：你好，我想找一下玛丽？稍等一下，我去叫她接电话。故选B
