A friend is like a mirror. When you stand in front of a true friend what is back to you?A

问题补充：

A friend is like a mirror. When you stand in front of a true friend, what is back to you?

A. reflecting

B. to reflect

C. being reflected

D. been reflected

答案：

A. reflecting

B. to reflect

(答案→)C. being reflected

D. been reflected

解析：考察be being…特殊用法。“be+ being+形容词/过去分词”强调某人在特定的某个时刻或时候的状况，而不是指这个人一直都是这样的。不仅仅是指当你站在镜子面前的这一特殊时候的情况。光顾C正确。