![Olga Zotova, Development Manager, Mars](https://onlineenglishclasses.co.uk/wp-content/uploads/Olga-Zotova-mars-150x150.jpg)
I attended David’s recent online course ‘Communicating across Cultures’ (Group Business course) and can declare that the course was very practically-oriented and very helpful for those who want not just to improve their level of proficiency in English, but as well to get some very useful native English vocabulary and a deeper understanding of the essence of the English language.