grammar 問題

do you drink alone 即係問你是否自己一個單獨飲; Do you drink with alone 係問你是否跟單獨的人在飲?

the word 'with' is, of course, describing someone,
example: i'm WITH you.
and we don't usually use 'with' to 'nothing', like
do you drink WITH alone?
it should be
do you drink alone?

hope it helps you