英语单句改错,急!Lisa was working as a teacher in a big firm for the

英语单句改错,急!Lisa was working as a teacher in a big firm for the Lisa was working as a secretary in a big firm for the first he is working for a big firm? he is working for a big firm as an engineer 句中的working是什么时态 Tim is working for a big firm as an engineer是什么意思 Tim is working for a big firm.He is working for a big ( ) A 英语改错The police in big city was searching for a thief named b 英语短文改错,高手进The police in big city was searching for a thief n he is working for a big firm as an engineer这句话的as用对没有? 英语翻译Tim is working for a big firm as an engineer蒂姆在一家大公司担任工程 he is working for a big firm.和he works for a big firm.有什么区别? I was working as a double agent for the Chinese