1.If he hadn't gone to the station,he wouldn't have met her cousin.2.If he had worked hard,he would have passed the exam.3.If they had had time,they would have finished their homework.不明白的再问哟,...第三个句子是两个had吗？帮忙翻译下吧 谢谢啦是两个had, have的过去完成时。如果他们有时间的话，他们就能完成他们的作业了。