40年前的英语

He can't find the place where he lived 40 years agoHe can't find the place which /that he lived in 40 years ago

forty years 或 40 years

it is impossible for him to find the place where he lived forty years ago.it is +adj,+for sb.+to do sth

forty years或者four decades

forty years ago

It's impossible for him to find the place where /in which he lived 40 years ago.(适合高二以上)It's impossible for him to find the place that/which he lived in 40 years ago.当然还有别的翻译法。如；He can't find the place...等。相信你能理解了吧，你自己想一想！很乐意帮助你！

forty years 或者 40years