I have got an opportunity to start a new job. I will earn more money and it will be more interesting than the job I have now, but I will have to move to another city and stop my English lessons. What do you think I should do?

you have to make your own choice, think careffully before deciding. If I were you I think I could go for the job because it's so hard to find the job that give you lot of money and also you happy about it as well. You can learn English everywhere not just join English class.