没有主语的情况下,be invited to.. 的不定式还是主补吗 ?
如果句子改为:I think it is a great honor to be invited to visit your country.
则句子结构是:it is a great honor to be invited to visit your country 是宾语从句,作 think 的宾语。在这个宾语从句中,it 是形式主语,is 是系动词, a great honor 是表语(也可以叫做“主语补足语”),to be invited to visit your country 是动词不定式短语做真正主语。