1．It is of great important to keep a good diet and have a proper rest.________________
2．Finally, my perseverance (坚持) paid off and I made a lot of progresses in spoken Korean.________________
3．First of all, it's advantage is to spare much time and trouble in shopping outside.________________
4．Out of class, I take an active part in various sport to keep healthy, which, I believe, is very important for my study.________________
5．One of the reason why there is so much traffic is that only a small number of people use public transportation.________________
