【单选题】Exercise is good for you, but most people really know very【C1】______about how to exercise properly. So when you try, you can run into trouble. Many people【C2】______that when specific muscles are exerc...
【简答题】单词填空。 Everyone knows that exercise is important. We all need to exercise. Doctors say i_____ (1) is good for us. It makes your heart and body s (2). Children who often exercise are more alert (灵活的). T...
【单选题】Exercise is good for you, but most people really know very【B1】about how to exercise properly. So when you try, you can run into trouble. Many people【B2】that when specific muscles are exercised, the fa...