It is believed that if an event is it will surely the readers of the paper.A. astonishe

问题补充：

It is believed that if an event is , it will surely the readers of the paper.

A. astonished; astonish

B. astonishing; be astonished

C. astonishing; astonish

D. astonished; be astonished

答案：

A. astonished; astonish

B. astonishing; be astonished

(答案→)C. astonishing; astonish

D. astonished; be astonished

解析： 考查动词astonish的词形变化，astonished修饰人，感到吃惊的astonishing修饰物，令人吃惊的，astonish 动词，使某人吃惊为astonish sb，句意：人们相信如果一件事情令人吃惊，它将一定会使这个报纸的读者们吃惊。所以选C。