You haven't impressed me while writing in English. I am really sure that they are correct. If you really want to show your brilliant grammar skills I believe that you should try to pass an exam such as IELTS, CPE, CEA, FCE etc. Maybe it will help you to become more self-confident. Because you know it really looks silly, when person who was writing in Russian starts writing in Eglish just because he wants to show off something to somebody. Another thing I want draw your attention to is that your "abusing" attempt has failed. I really don't care of the game true/false opinion. I am not person of principle and it is not a big deal for me to admit something. And I strongly recommend you to look after and take care of your own grammar and speaking skills. Last but not the least, your way of arguing is a little bit childish:pardon:. Nothing personal just English ;) P.S. Thanks a lot to Seniorita and her friend from Liverpool. Maybe it really was kind of misunderstanding, cause teacher is local.