________ the 2020 Olympic Games will be held in Beijing is not known yet.
A. Whenever B. If C. Whether D. That
________ the 2020 Olympic Games will be held in Beijing is not known yet.
A. Whenever B. If C. Whether D. That
C
主要测试主语从句。由语境可知译文为:2020年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。