They climbed to the top of the tower,____________ they could see what was happening in the distance

这句放回去不是they could see what was happening from the top of the tower吗，那上面这句话和这句情况不是一样吗,in which都可以吗. 放回原句是I can study in the place 这句话中不是用where？不是说where= 介词+which 吗？ 有句话是 I have found a peaceful place _where(in which)__ I can study.from which 答案为什么是B而不是C啊.from where C.where B,____________ they could see what was happening in the distance AThey climbed to the top of the tower

which是哪一个的意思，是代词，搂住说得很对，where是等于介词加which，所以这句话该这样改，From which tower they cilmbed to,they could see what was happening in the distance ，而这里的where是作宾语，代前面所告诉你的一个地点，由于前面已经说了，where后就不需要接宾语从句，当然也可以说From where （the top of tower） they climbed ,they could see what was happening in the distance ，懂了吗？

原句想说从山顶看，因此句中的山顶是地点，因此用from where。比如我们说从门后就应该说from behind the door.而不用from the door.