题目

to have done
看看吧
The new power station is reported ______ within three years
A to have completed B to have been completed
C having been completed D to be completed
请问:这个题目应该选什么呢?我选的B 但错了,D是正确答案.它们应该怎么区分呢?to have done 应该怎么用呢?为什么我选B 就错了呢?

提问时间：2020-11-06

答案

先翻译这句话
这座新的发电站将在三年内.
1.这是发生在将来的事情,用 to be ,记住这点,经常考的
2.因为存在被动关系,所以用 to be done
另外,to have done 应用在主动和已经完成的情况下
例如
I suspect him to have done it.我疑心这是他***.