英语的单词是什么

　　All students without exception must take the English examination.

　　所有学生都必须参加英语考试，无一例外。

　　She asked me if I would give her English lessons.

　　她问我愿不愿意给她上英语课。

　　I need to improve my English.

　　我需要提高我的英语水平。

　　There is a growing need for qualified teachers of Business English.

　　对合格的商务英语教师的需求日益增长。

　　Can you help me put this letter into good English, please?

　　请问你能帮我用通顺的英语来表达这信的内容吗？