结尾句

　　36. We all know the story of ________. this lesson tells us that ________, we should ________.

　　37. My own point of view is that ________ is a normal behavior in our society. There is no doubt that ________. As an old saying goes, ________.

　　38. If we cant take useful means, we may not control this trend, and some undesirable result may come out unexpectedly, so what we should do is ________.

　　39. However, this graph may not predict the entire situation in the future. I believe ________.

　　40. From the graph it is evident that ________.

　　41. From all the reasons above, we know that great changes had taken place in ________. And I believe that ________.

　　42. Taking into account all of these factors, we may reach the conclusion that ________.