Hi gals/guys,
I deeply appreciate your help during the past few days, and I seem to have a much better understanding on "the".
However, there is one last case in which I don't know why sometimes "the" is used and sometimes isn't.
Group A's pattern: a plural of something without "the"."A supercluster is most likely to have formed in
(the) regions of space where blahblah"
"What do
(the) observations of galaxies tell us about blahblah"
"The first group consists of nouns which refer to
(the) shared knowledge of the situation or context."
"Use a noun plus definite article to refer to
(the) systems of
communication and the mass media."
"We search among
(the) ghostly errors of measurement for
(the) landmarks that are scarcely
more substantial.
In group A, are all the nouns definite? Does "of" make them specific rather than general?
Group B's pattern: a plural of something BUT with "the"."How do we study
the lives of galaxies?"
"
Thus
the explorations of
space end on a note of uncertainty."
"We acquaint ourselves with
the different types of galaxies in the universe ".
Please explain why the sentences that follow the same pattern use "the" differently.
Thanks a lot!!!