When the disease broke out, all the students ad to study online at home. A high school student went popular on the Internet at that time. Although it was cold in winter, he sat on the roof and studied carefully through his neighbor's Wi-Fi. This hard-working student reminds us of the importance of self- discipline (自律). It is one of the most excellent habits. As we all know, good habits can make people better. It's certainly true for students. And here are several steps you can follow to develop good study habits. Make your study plan and goal. No matter what you do, it's necessary to make a plan and set a proper goal at first. Then, before you begin to work on your new plan, it's important to make sure that your goal can be achieved within a certain time step by step. Only in this way can you have the confidence to keep going. Find a habit you want to develop. Having good habits helps to achieve your goals. It's said that it takes only 21 days to develop a good habit. So try to find something that you are really interested in and then develop it into a habit. After all, the interest always matters a lot. Give yourself enough time and stick to your plan. Usually, it takes time if you want to achieve something. Starting a new study plan may be difficult at first, but it is worthwhile as long as you keep it up. Just give yourself enough time and try your best to make it. As long as you can stick to your plan, you will find what you get is more than what you've expected. What is the best title for the passage? A The Importance of Self - discipline B How to Set a Proper Study Goal C A Popular Student on the Internet D How to Develop Good Study Habits