___the 2000 Olympic Games will be in Beijing is not known yet.A.whether B.If C.Whether D.That这道题为什么选择C而不是D帮我说一下whether和that的区别谢谢

一道易混有难度的高中英语选择题___the 2000 Olympic Games will be held in Beijing is not known yet.a、whenever b、if c、whether d、that ___the 2000 Olympic Games will be held in Beijing is not known yet.a、wheneverb、ifc、whetherd、that为什么不选if China held the Olympic Games successfully ,___the whole nation coisidered a great honor.天关系词 Olympic olympic 主语从句什么时候用whether,不太清楚.还有if也能引导吗___the 2000 Olympic Games will be in Beijing is not known yet.A.whether B.If C.Whether D.That ___the 2000 Olympic Games will be in Beijing is not known yet.A.whether B.If C.Whether D.That这道题为什么选择C而不是D帮我说一下whether和that的区别谢谢 Beijing was the host ___the Beijing Olympic Game 是of 还是for那Beijing was the host ___ The Olympic Game呢 Could you tell me when ___the new Olympic center?A are we visited B will we visit C we are visited D we will visit olympic games the Olympic Olympic是什么意思? summer Olympic Olympics 等于 Olympic Game 还是Olympic Games Olympic Games English是什么意思Olympic Games English The Olympic games.还有The Olympic flame. ___the blackboard,please. ___the tree填动词