Thank you for the good advice. When I came here, I thought I was going to study about computer after English course for 6 months. However, 6 month course is too basic because I am a student who is studying computer science. I am told some advice like you said. From this semester I am developing the homepage of my English courseand I have studied about programing for internet. - The book is much easier than when I studied it before I came here. I am afraid of going back home when I think of my English. But, I will make other chances by myself. ^^ It is getting warmer and coming to spring!