Listen to MP3 of Series 2 and 3, Cambridge Business English Intermediate Question.

I'm not sure if there are any systematic recording materials that meet your requirements, but you can try the website introduced below. I hope it helps. There is also a forum where you can get the information you want after applying for membership. /

grammar

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A free learning website jointly organized by the British Ministry of Education and the China Ministry of Education.

Comprehensive learning website

A comprehensive English church

British lock

Knowing British and American customs can not only increase our understanding of English, but also help to improve our interest in learning English. Beyond is an all-English website run by China students studying in the United States. It not only introduces the general situation of Britain and the United States, but also teaches you how to speak the same English as British and American natives, and also provides a community for users to communicate with each other.