The news the prime minister will pay a visit to our school next week has been confirmed.

问题补充：

The news the prime minister will pay a visit to our school next week has been confirmed.

A. when

B. whether

C. why

D. that

答案：

A. when

B. whether

C. why

(答案→)D. that

解析：考查同位语从句。本题中的同位语从句that the prime minister will pay a visit to our school next week是用来解释名词the news的内容。That在句中不充当任何成分，只起引导和连接作用。句意：下个星期总理要来参观我们学校的消息已经被确认了。ABC三项都表示的是疑问的意思，只有D项表示的是肯定的意思。故D正确。