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？
American English is significantly different from British English.
美国英语与英国英语有很大差异。