问题补充：
–Hello, May I speak to Lucy?
--.
A. Yes, I am
B. Do you know her
C. I’m speaking
D. This is Lucy speaking
答案：
A. Yes, I am
B. Do you know her
C. I’m speaking
(答案→)D. This is Lucy speaking
解析：句意：——你好，我可以找露西接电话吗？——我是露西。在英语中打电话时，表示我是……，用This is……speaking。故选D
