Recently, a novel coronavirus,    1     has great harm to people’s health, has attacked the world. Therefore, I would like to talk about how our immunity can     2     (improve). First of all, we must ensure that we have a     3     (health) diet, which will help our body get enough nutrition. In addition, a series of     4     (measure) can be taken to form good habits, such as drinking more water and doing more exercise. During this special period, we can do rope-skipping and do gymnastics at home     5     (regular). We cannot stay up late to focus on our cellphones, and what     6     (matter) most is self-discipline. Last but not least, it is crucial for us     7     (keep) a positive and optimistic attitude at any time. Don’t postpone     8     (go) to bed until ten o’clock. Believe that we can stay healthy, and then we really can! In     9     word, the whole society should pay more attention     10     how to keep healthy. Only in this way can we improve our immunity and keep away from diseases.