The phrase "hopped to it" means to act quickly or start working on a task immediately. There are various synonyms for this phrase which can be used interchangeably such as "get cracking", "jump to it", "get a move on", "buckle down", "spring into action", "hit the ground running" and "roll up one's sleeves". All these phrases suggest a sense of urgency and show the importance of taking prompt action. Using these synonyms can help you sound more sophisticated in your language while conveying the same meaning. So when you're asked to "hopped to it", remember that there are plenty of alternatives you can use to express the same sentiment.