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

分类: 作业答案 • 2021-12-20 02:45:47

问题描述：

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

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