26.The local health organization is reported ___ twenty-five years age when Dr. Green became its first president.
A. to be set up B. being set up
C. to have been set up D. having been set
为什么选c不选d 请祥解

句式问题
It is said/reported/believed/known that-clause(主语＋谓语）
=主语＋be said/reported/believed/known to do/to have done/to be doing
eg.He is said to like swimming.据说他喜欢游泳。
=It is said that he likes awimming.
He is said to have gone abroad.
=He is said to have gone abroad.据说他出国了。
He is said to be studying English.
=It is said that he is studying English.据说他在学英语。
注意上述例句中的时态。