Sử dụng mệnh đề quan hệ rút gọn các câu sau: 1. Sports that allow people to develop independence can help them learn to overcome life's obstacles on their own. 2. The distance to sports centers in the city is very long, which discourages people from exercising. 3. A fitness regimen that includes yoga or walking should be encouraged. 4. It will be difficult for people who play team sports to arrange weekly training sessions, which will disrupt their training schedule. 5. The growth of sports centers creates competition in attracting customers, which makes membership fees cheaper.