Take another look at the sentence:

With a hotdog, Dris __________ Butler, her bulldog, to the car but could not get him onto the backseat; Butler sensed a trip to the vet and refused to budge.

The sentence requires the simple past of lead, an irregular verb. Led is the simple past form.

Verb Simple Present Simple Past Past Participle
lead lead(s) led led

Leaded, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.

Try again to escape Grammar Hell!

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