阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Do you want to start exercising? 【小题1】 (congratulation)! You are sure to benefit a lot 【小题2】 it. To start with, physical activity 【小题3】 (increase) the efficiency of your heart and lungs. In addition, it has been proven that active people tend to have better immune systems and are at 【小题4】 (low) risk of diseases. Moreover, 【小题5】 (work)out can help you reduce stress, get over negative feelings, and improve certain brain functions. To help you exercise 【小题6】 (proper), there are several tips. First, make sure 【小题7】 you expect to improve: heart and lung efficiency, muscle 【小题8】(strong) or flexibility. Then stick with activities you enjoy. Second, eat right food to meet different needs of your body. When 【小题9】(eat) is also of great importance. Don't forget to drink throughout exercise. Last but not least, wear proper clothes and equipment when exercising to prevent injury. Warming up before exercising and stretching at the end of your workout 【小题10】(be) good ways to avoid getting hurt.