Final answer:
The sentence with a misplaced modifier is 'Jeb tumbled downwards, flying through the air.'
Step-by-step explanation:
The sentence that has a misplaced modifier is: Jeb tumbled downwards, flying through the air. In this sentence, the adverbial phrase 'flying through the air' modifies the subject 'Jeb' instead of the action 'tumbled downwards' it is intended to modify. To correct the sentence, the misplaced modifier should be moved closer to the action it describes, such as: 'Flying through the air, Jeb tumbled downwards.'
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