Take another look at the sentence:

While crawling along in rush-hour traffic, Kay cranked up her car stereo and __________ the lyrics to "Back in Black" with AC/DC, oblivious to the scowls of annoyance from the other drivers trapped beside her.

The sentence requires the simple past of sing, an irregular verb. Sang is the simple past form.

Verb Simple Present Simple Past Past Participle
sing sing(s) sang sung

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

Try again to escape Grammar Hell!

HomeTermsExercises MOOCHandoutsPresentationsVideosRulesAboutShopFeedback