Most of the professors _____ to our school were from South Africa．
A．invited B．to be invited C．being invited D．had been invited
Most of the professors _____ to our school were from South Africa．
A．invited B．to be invited C．being invited D．had been invited
A
考查非谓语动词的用法。Professors 与invite之间是逻辑上的被动关系,所以用过去分词作定语,表示完成和被动的意义。