第一节短文错 Our head teacher always told us not to swim alone, which we mostly obeyed. One summer day, however, it was very hot that5 after lunch, three of us for a shapping leave. Instead of go aked gotng shopping, we jumped to a river behind the school. We thought that into we would not be punishing even if we were discovered, because we punished were not alone but three. As we were enjoying ourselves, there broke a frightened shout, "Out of A water to my office! " It was our head frightening the teacher! Though not alone, you can imagine what will happen teacher would