The specialist at the meeting will give us a lecture next week .
A. referred
B. referred to
C. referring
D. referring to
网友回答
A. referred
(答案→)B. referred to
C. referring
D. referring to
解析：句意：在会议上被提到的专家将在下周给我们做个讲座。这里需要定语，修饰the specialist，refer to“提到，参考，所指”，the specialist和refer to是被动关系，用过去分词做定语，选B。