Could someone check my reasoning for my answer to the following exercise (from C.E. Eckersley's 'A comprehensive English Grammar', Chapter seven, the definite article, exercise II, part 13)?
Insert the definite article where necessary for the following:
___ world opinion is against ___ aggression
My answer is 'the world opinion is against aggression'. My reasoning is that 'aggression' is uncountable and used generically and thus doesn't require 'the', while 'world opinion' is used generically in the singular and thus requires 'the'. (I may be entirely wrong so someone correct me)
Also, is there any way of differentiating a countable noun used generically in the singular and that in the singular used to refer to something in particular? Would it be correct to say that 'the world opinion' could be a term used generically or that used to refer to the world opinion in particular?