This is the school ______ I studied three years ago .
2个回答

where 一是school本身是个地点,一般用where修饰二是where副词 表示 (在.地方) 不用跟介词,和后面i studied (无介词) 构成定语如果非要用which, 后面应该写成i studied at 宾语从句做定语,要加个介词, which 做宾语,也可以写成 This is the school at which i studied three years ago, 但即使可以这样用不如直接用where自然.