David showed the report to the public surprised me.A. WhatB. ThatC. WhichD. Who

问题补充：

David showed the report to the public surprised me.

A. What

B. That

C. Which

D. Who

答案：

(答案→)A. What

B. That

C. Which

D. Who

解析：句意:大为向大家看的报告使我很吃惊。这里是主语从句，show sth sb让某人看某物；主语部分不缺成分，that在主语从句中不作成分，故选A。