Review the sentence:
Gasping after the five-mile run in the summer sun, the bottle of cool water
quenched Donovan's thirst.
Gasping after the five-mile run in the summer sun, a participle phrase, comes right before bottle, an illogical target. Donovan, not the bottle, is the one with lungs that can gasp!
Before you continue, review the rules for misplaced and dangling modifiers.