ahead of time

• I tried my best to have finished that assigement ahead of time
  我尽力终于提早完成了使命。
• I tried my best to have finished that assignment ahead of time
  我尽力终于提前完成了任务。
• I tried my best to have finished that assigement ahead of time
  我尽力终于提前完成了任务。
• Start to pack a day or two ahead of time
  在出发前一两天就开始打包。
• Owing to our efforts , the task was finished ahead of time
  由于我们的努力，任务提前完成了。
• Out of question , this plan can be fulfilled ahead of time
  毫无疑问，这个计划可以提前完成。
• And i want my luggage federal expressed ahead of time
  还有我要我的行李用联邦快递提前送出去
• A punctual person always finishes everything ahead of time
  一个守时的人总是把事情提前做好。
• He worked day and night to finish his papers ahead of time
  为了提前完成论文，他日夜地工作。
• Can you deliver the goods ahead of time
  你们能不能设法提前交货