Take a look at the sentence again:
Becky had both an empty wallet and stomach, so she __________ a chocolate
bar from the candy rack. The ensuing guilt was harder to tolerate than her
growling belly.
The sentence requires the past tense of steal, an irregular verb. Stole is the simple past form.
Verb | Simple Present | Simple Past | Past Participle |
steal | steal(s) | stole | stolen |
Had stole, the form you chose, illegally combines the simple past with the auxiliary verb had. Before you continue, review the rules for irregular verbs.
Go back to the sentence to try again.