Multiple choice general knowledge She _____________ spilled the coffee on her friend. accidently accidentlly accidentaly accidentally Reveal answer Fill a bubble to check yourself D Correct answer Explanation The correct adverb is 'accidentally' with double 'l' and 'ally' ending. The word is formed from 'accident' + 'al' + 'ly'. Options A, B, and C all have spelling errors - incorrect number of Ls or missing letters.