I had the pleausure to improve my english with the aim of becoming more fluent having one-to-one english lessons with Clear Mark and their mother tongue teachers. We have had solely 1 hour online lessons according our schedules, addressing my limits with tailored lessons prepared by them with papers of different levels (ranging from lower levels to higher) also trying to push my limits in order to overtake them. The lessons include mostly speaking and listening exercises related to current topics, but the friendly behaviour of the trainers give me the chance to talk about everything having a natural english conversation. I strongly recommend to have lessons with Clear Mark as it is not so difficult to speak with them, of course the first lessons are as it's necessary to speak exclusively english because they are only mothertongue but it is a good plus bacause you strive to improve quickly.