most people had a hard life in the past ,but now their﹎﹍﹍（li

Most people had a hard life in the past,but now their （living conditions）are becoming better and better.
以前大多数人的生活过得很艰难,但现在他们的生活条件变得越来越好了.
living conditions,生活条件.living是形容词,用来修饰名词conditions作定语；conditions是可数名词,要加复数.