I'm already forgotten____you put the dictionary

问题描述:

I'm already forgotten____you put the dictionary
A.that where it was B.where it was that 为什么选B不选A

该句我认为是宾语从句,先行词是forgotten,汉译为“我忘记了你上次放字典的位置了”,明显是用where,你用that句意解释不通,你没办法表“位置”这个概念.