请问 This is the most beautiful place （) I have ever seen A wh

一、此题的空格处应填空 that,不能填 where,因为：定语从句中的谓语动词 see 为及物动词,在此它的逻辑宾语就是 the most beautiful place,所以要用关系代词 that 来引导(当然也可省略不用),因为只有关系代词能作主语或宾语,而关系副词 where 只能用作状语.
二、说 This is the place where I have ever seen 不对,应将 where 改为 that(当然也可省略不用),道理同上.