ok malak i'll tell u why i considered them wrong according to my point of view
first
actually i didn't notice that u haven't mentioned ramadan yet
also, coz i had known already that it is Ramadan, it seems odd for me when i read ( a whole one month) u know i usaully hear the article (the ) more than (a) a
i'll try to ask and inform u ok , u have a point in this *_^a
second
the V (join) doesn't need a preposition to connect it with the Object
we usually say
join the group , join the relatives ...etc
if i were u i would just say
many families join their relatives in Ramadan
instead of
many families join together with their relatives in Ramadan
together and with have the same meaning so try to avoid repeating words
third which is the most important Q
closeness and support are abstract words so they don't need articles
look more for that thing , we usually treat them like uncountable words
got it ?a
if u have any Q ask English boy, he is the boss here << dilemma
have to leave now see u guys in sha'a Allah
i really enjoyed being with u in this competition