问题补充：
---Who’s that speaking?
--- .
A. I’m Lily.
B. She is Lily.
C. I’m Lily speaking.
D. This is Lily speaking.
答案：
A. I’m Lily.
B. She is Lily.
C. I’m Lily speaking.
(答案→)D. This is Lily speaking.
解析：I’m Lily.我是丽丽;She is Lily.她是丽丽;I’m Lily speaking.说法有误;This is Lily speaking.这是丽丽在说话.根据上文,那是谁在说话?英语中打电话时,习惯用this和that指代打电话的双方,可知选D.
