题目内容：

his father died the year that/when/in which he was born.
两个小问题
1.为什么不是in the year?
2.为什么可以用that?

优质解答

1.the year 是先行词,是从句要修饰的的,不加in.
2.一般情况下,非限定定语从句的引导词都可用that.（不过,这句话中,the year在从句中做时间状语,貌似不能用that,你确定可以?）