Swimming is very popular. People like   1   in summer because water makes people feel   2  . If you like swimming but swim in a wrong place, it may be   3  . These years, a lot of people   4  when they were   5  themselves in the water, and most of them were students. Some people are not   6   in swimming. They often think they swim so well that  7   will happen to them in the water. Summer is here again. If you  8   swimming this summer, don’t get into water when you are   9  . If there is a “No Swimming ”sign, still don’t get into water. If you remember these, swimming   10   safe. Swimming is good for your health.