阅读材料，给有关运动的段落选择合适的标题．

（1）　　Whenever I move to a new city to study or work， I look for exercise classes． You meet like﹣minded people， you can support each other during a difficult exercise and you all share a collective （集体的） feeling of excitement when the class finishes．

（2）　　Every day， the 20 minutes on the treadmill （ 踏车）gets easier， the weights feel lighter and you feel a great sense of achievement． It might not be easy， but you would be fit and strong． It's a great feeling challenging yourself． Also it's a result of your hard work．

（3）　　When you exercise， your body produces endorphins （内啡肽）． It will give you a rush of excitement and happiness． You will feel better after exercise． Next time you're having a bad day， try going for a run， and then the day won't seem so bad after all．

（4）　　We all know the effects of exercise on our mind． Exercise might give you a feeling of confidence （信心） from being comfortable with your body and appearance． This new confidence might even help in your life．

（5）　　Focusing on exercise can help you forget the problems and stress of daily life， study or work． During exams， I always spend an hour a day in the gym． It makes me feel less anxious and it also helps me to sleep those important eight hours the night before a big exam．

A． Exercise cheers you up．

B． Exercise helps you get along well with people.

C． Exercise makes you believe in yourself.

D． Exercise helps you lower stress.

E． Exercise makes you feel strong， fit and healthy.