One day after three months of school.

You are in New York and you are following the situation in China and around the world every day, and you feel very relieved to see that the epidemic in China is gradually getting under control. You are really worried about your family, and now that the situation is under control, life is gradually starting to return to normal. In New York, however, you hear that the number of infections is increasing and you feel a little worried. You arrive early in class with 10 minutes to go. You see that all the students around you are sitting down, and you want to：