I think it a great honor to visit your country.
A. to invite
B. inviting
C. having invited
D. to be invited
网友回答
A. to invite
B. inviting
C. having invited
(答案→)D. to be invited
解析：考察不定式用法。本句指的不定式to be invited to visit your country是真正的宾语，it是形式宾语。句意：我认为被邀请来参观你们的国家是一件巨大的光荣的事情。故D正确。