Of course,the reason for Europe’s comparative clarity (concerning the different functions of men in society)主语从句 is ((that European society has always been divided into classes in a way
Of course,the reason for Europe’s comparative clarity (concerning the different functions of men in society )主语从句 is ((that European society has always been divided into classes in a way))表语从句 《 that American society never has been》状语从句!.