Question

I feel it a great honor _________ to give a speech to you．

1. A.
   invited
2. B.
   to invite
3. C.
   having invited
4. D.
   to have been invited

Answer 1

D
解析：
句意：我觉得受到邀请给你们讲话是一件很荣幸的事。to have been invited是真正的宾语，要用被动形式。