? I’d like to thank all of my new friends from different parts of our huge world for the gratifying time we shared.

? Our daily conversations, unforgettable trips, British experience with you, guys, mean so much for me! I’ll never forget you! Moreover, I’m waiting for all of you in my city.

? Also I’d like to thank the best language school for the opportunity to get this experience. Your professionalism and being so thoughtful for everybody made my staying the most memorable time of my life! All good. Well done. On the subtle side. In the last sentence Your professionalism and being so thoughtful - reads ok, I had to read it twice. You mix things connected by and. When connecting with "and", the more similar the things are in terms oif parts of speech, the easier it flows. Attempts Your being so professional and thoughtful ... Your profesionalism and that you were so thoughtful . But this does not flow as well as yours. :( Maybe others will disagree. It's a small thing on top of something that is already well written.