Most of the artists_________ to the party were from South Africa.

题目

Most of the artists_________ to the party were from South Africa.
A.invited B.had been invited
可我觉得B也可以啊,已经被邀请的不是很通吗

答案

A
invited to the party,动词的过去分词形式做后置定语,修饰前边的artists,指的是那些被请来参加宴会的艺术家们.
要想B也成立,这样变：
Most of the artists (who had been invited to the party 定语从句) were from South Africa.