题目内容：

Our civilization must not be thought of as ——in a short period of time.
A.being created B.to have been created C.having been created D.to be created
请问为什么不选A?能不能把每个答案 详解下

优质解答

从头说起啊：首先先了解think of .as.这个短语是“把.当做是.”在这句话 中使用了被动语态.其次being done 与having been done 的区别是being done 表示进行,被动；having been done 表示完成,被动.在这句话中假设用...