我看到一句话:
that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句,在口语中that常被省略,例如:
His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。
以上说的是对的吗?如果是对的,那that既可以做关系代词,又可以做关系副词,是不搞混了吗?怎么区分?谢谢。