It is necessary for middle school students to have some after-school activities. However, the best way to plan their after-school activities is to make sure that they keep a good balance (平衡) between studies 1 activities. The activities should 2 all kinds of sports, like running, basketball, swimming and some artistic programs, such as music or art. It is also 3 for students to mix up their activities. They should try to find new activities and develop different interests 4 taking part in the same activity every day. This helps students to stay active and 5 them from getting bored.