Having been done ,done,having done 的详细区别

Question

____many times,he still couldn't understand it.
A、Having been told B、Told
为什么答案是A，现在分词完成时的被动，B也可以表示完成和被动啊。
同样，还有一道题：The building____last year is a restaurant.
A、having been built B、built
这道题为什么选B呢？

Answer 1

Having been done 是现在分词的完成时的被动语态，用的时候常常会出现一个段时间状语。如：
Having been built for two years, the building will be used as a hospital
,done是过去分词，表示被动和完成，如
completed last month, the building will be used as a hospital
having done 是现在分词的完成时的主动形式，用的时候常常会出现一个段时间状语。如
Having worked for a long time , the workers are all very tired.追问

____many times,he still couldn't understand it.
A、Having been told B、Told
为什么答案是A，现在分词完成时的被动，B也可以表示完成和被动啊。
同样，还有一道题：The building____last year is a restaurant.
A、having been built B、built
这道题为什么选B呢？

追答

____many times,he still couldn't understand it.句中的many times 是一个段时间状语，只能用Ahaving been told
The building____last year is a restaurant句中last year 不是一个段时间状语，而是一个过去的时刻的状语，只表是过去，所以用Bbuilt
请再比较一下我前面给的例句，与你的上面两个例句并不矛盾！