There was I cared about how others may see me. Now I know how silly I was.
A. a time that
B. time that
C. time when
D. a time when
网友回答
A. a time that
B. time that
C. time when
(答案→)D. a time when
解析：
There was a time when...意为“有一段时间......”.此句意为：有一段时间我在乎别人怎样看我。故选D.