Half of the honoured guest ________ to the reception were foreign ambassadors.
A.invite
B.inviting
C.to invite
D.invited
网友回答
D解析句中guests与invite具有被动关系，应用过去分词短语作后置定语，表示已完成的被动动作。作后置定语的过去分词短语在语法上相当于一个定语从句，invited to the reception＝who had been invited to the reception。句意：被邀请到招待会上的贵宾有一半都是外国大使。