Take another look at the sentence:
George would have __________ to class sooner, but a beautiful woman was listening to him lie about his fat wallet and hot car, and he couldn't tear himself away from the conversation.
The sentence requires the past participle of come, an irregular verb. Come is the past participle.
|Verb||Simple Present||Simple Past||Past Participle|
Commed, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.