I would say the correct answer is - <span>But the doctor's four friends had taught no such lesson to themselves. They resolved forthwith to make a pilgrimage to Florida, and quaff at morning, noon, and night, from the Fountain of Youth.
As you already said, allegory is something that tells us a deeper and more important story than what may seem on the surface. So these four people don't just want to go on a pilgrimage and find the Fountain of Youth on a whim - there must be something important behind their decision.
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I think it's going to say like how the characters are feeling right now and how they talking like for example when your angry you talk
in a angry voice and
This sentence is grammatically correct but it is not adverb phrase it is Syntax
