他因为迟到而不得不放弃比赛资格。

He had to ___forfeit his chance to compete because he was late.

他因迟到不得不放弃比赛资格作为惩罚。

He had to give up his spot in the match as a ___forfeit for being late.

他因违反规则而失去了比赛资格。

He ___forfeited his chance to compete by breaking the rules.