英语翻译Before leaving the classroom ,please turn off the lights

英语翻译
Before leaving the classroom ,please turn off the lights.
Before leaving the train,make sure you take all your bags with you.
Before long the Egyptians developed a number of ball games,each with its own set of rules.
Before you go to another country,you must know the language and some of the culture of the country.
Beijing Olympic Games can make Chinese people work harder.
Bill hit his car into a wall last night.
Bob and Peter found out that they were twin brothers.
Bob was such a hardworking man that he always worked late till night.
Both Ann and Mary are suitable for the job.
But competitive swimming is just over one hundred years old.
But first he wanted to find out whether they deserved his help.
But I’ve got room for only two of you in the house.
But little Smart is not really that smart.
By 1900,most states had laws against selling cigarettes to young people.
Call me tomorrow if you have time.
Can you answer a question which I want to ask and which is puzzling me?
Can you finish your work in time?
He spends too much money on clothes each month.
He spent 2 months learning how to drive a car.
He told me that he had lived in America for ten years before he came to China.

离开教室之前,请关掉灯.
火车离开之前,你要确保所有的行李与你在一起时的感觉.
不久,古埃及人发展出许多球类运动,每一种都有它自己的一套规则.
在你走之前,到另一个国家,你必须知道这个语言和一些国家的文化.
北京2008年奥运会能使中国人民更加努力地工作.
比尔开车撞到墙上昨晚的事.”
鲍勃和彼得发现他们是双胞胎兄弟.
鲍勃是个勤奋的人,他总是工作到深夜.
安妮和玛丽都很适合做这项工作.
但是竞技游泳是刚刚超过一百岁.
但首先,他想知道的是他们是否值得他的帮助.
但我已经为你的房间里只有两家.
但是小灵通不是真的那么聪明.
在1900年,大多数州有法律反对出售的香烟的年轻人.
明天打电话给我,如果你有时间.
你能回答我一个问题,想请教你,我吗?
你能提前完成工作吗?
他花了很多钱买衣服.
他花了两个多月的时间学习如何开车.
他告诉我他已经在美国住了十年前来到中国