KANG KANG is a ninth-grader at No. 1 Middle School，Xining. He got back home on March 1 after four days out in the open. He ran away from home ______ he felt stressed out about the coming senior high school entrance examination（中考）. The boy is not the only one stressed out over exams. Reporters ______ a survey at a middle school. It showed that 72 percent of students feel stressed and 67 percent of these students said their stress comes from school grades.

People often feel stressed when they have a big ______，such as performing in a play，taking a test，or playing in a sports match. Some stress is ______. It makes you active. If you have an important test，stress can push you to study ___ But too much stress is unhealthy. It can ______ make you feel worried and tired.

What is the best way to ______ stress? During the days when you are preparing for the exams, you can take a walk and chat with your classmates. You can also ______ each other your worries. It makes you stay ______. Doctors suggested that, besides sharing thoughts with friends, students could also relax _______ listening to music，reading a book or just spending some time alone.