Take another look at the sentence:
Filling the shopping cart with D batteries and bottled water, our hurricane
preparation was finally complete.
Filling the shopping cart with D batteries and bottled water, a participle phrase, comes right before hurricane preparation, an illogical target. People, not preparation, have the money to spend on supplies! Before you continue, review the rules for misplaced and dangling modifiers.
Go back to the sentence to try again.