求几句中译英

人家不都说用后面的单词了么，
回顾历史，我们就会得到很多经验和教训（gain）
We gain many experiences and lessons when looking back our history.
据说英语的客观考试是20世纪70年代引入中国的（introduce）
It is said that the objective exam of English was introduced in 1970s.
黄浦江隧道的建成极大的促进了浦东的发展（promote）
The building of Huangpujiang Channel greatly promotes the development of Pudong.
在农村劳动的期间他养成了写日记的习惯（develope）
He developed the habit of writing diary when working in rural area.
我多么希望能在2010年上海世博会上当志愿者（wish）
How I wish to be a volunteer in the World Expo in 2010.
许多中国人认为刘翔是民族英雄，是中国人民杰出的代表（regard）
Many Chinese people regard Liuxiang as the naional hero of China and the outstanding representative of Chinese people.

1、Recalling history, we will have a lot of experience and lessons

2、It is said that English is an objective examination of the 1970s into China

3、Huangpu River tunnel built tremendous impetus to the development of the Pudong

4、In rura