英语翻译直到河里的鱼都死了,村民们才意识到污染是多么严重.（用三种句式）都是状语从句

Question

英语翻译
直到河里的鱼都死了,村民们才意识到污染是多么严重.（用三种句式）都是状语从句

Answer 1

villagers didnt realize how serious the pollution is until all the fish in river died.
not until all the fish in river died did villagers realize how serious the pollution is.
villagers realized how serious the pollution is after all the fish in river have been dead.