the Olympic Games will be held in Beijing is not known yet.A. WheneverB. IfC. Wheth

问题补充：

the Olympic Games will be held in Beijing is not known yet.

A. Whenever

B. If

C. Whether

D. That

答案：

A. Whenever

B. If

(答案→)C. Whether

D. That

解析：主要测试主语从句。由语境可知译文为：的奥林匹克运动会是否将在北京举行还不为人所知。再结合所给答案可知选择whether最佳，此题同时还测试了if和whether的用法区别之一：if不能用来引导主语从句。