Take a look at the sentence again:
If Carlos had known that hail the size of golf balls would fall later that
day, he would have __________ his shoulder pads and football helmet instead
of his one good suit.
The sentence requires the past participle of wear, an irregular verb. Worn is the past participle form.
Verb | Simple Present | Simple Past | Past Participle |
wear | wear(s) | wore | worn |
Weared, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.
Try again to escape Grammar Hell!