英语怎么说：我已经在联想公司工作一年半了

I have already been working in the Lenovo company for a year and half.Dear 还要请教下 差不多的结构 我在上海已经二年了 I have gone to shanghai for two years 或者 I have been in shanghai for two years 可以这样表达么 多谢I have been in shanghai for two years .这个是对的，楼主