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If only it could snow in the town, my city would look amazing!
First, I would like to know is it "If only" or "only if"? which is more idiomatic? What about:
only it could snow in the town, my city ...
As another example:
only if I had that car, I would be in Hawaii now
if only I had that car, ....
Second I would like to know do I need "the" before "town"? because I've seen there is no "the" in phrases like "in town", is it a universal rule for any case?