Take a look at the sentence again:
On his way to an interview, Gonzalo __________ a hot dog to quiet his rumbling
stomach. While he was wolfing down this quick meal, yellow mustard dripped
all over the front of his crisp white shirt.
The sentence requires the past tense of buy, an irregular verb. Bought is the simple past form.
| Verb | Simple Present | Simple Past | Past Participle |
| buy | buy(s) | bought | bought |
Buyed, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.
Go back to the sentence to try again.