英语翻译!1.我们要离开,就在那时他进来（be about to...when ...）2.他做了错误的决定,结果浪费了自己半生的时间.（make a decision ）

1 We were about to leave when he came in.
2 He made a wrong decision,as a result,he wasted half of his lifetime.自格林先生来中国以来，他就在这所学校教书。（since）Mr Green has been teaching in this school since he came to ChinaXiao Ming didn't leave home until his father came back