The first place _that_they visited in London was the Big Ben.为什么不用where?
问题描述：
The first place _that_they visited in London was the Big Ben.为什么不用where?
答
并不是先行词表地点,就要用where来引导的,关键要看这个名词在从句中做什么成份
从句they visited 中,visit是及物动词,所以缺宾语,也就是说 they visited the place
因此用that 来引导