根据短文理解，从A、B、C、D四个选项中选择正确答案。

    It's natural that young people are often uncomfortable when they're with their parents. They say that their parents don't 1 them. They often think that their parents are out of touch with modern ways; that they're strict with their children; and they 2 give their children a free hand. It's true that parents often find it 3to get on well with their children. In fact, they seem to forget 4 they themselves felt when they were young. For example, young people like to act on the spot (当场) without 5 thinking. It's one of their ways to show that they've 6 and they can face any difficulties. Old people worry more easily. Most of them plan things ahead, at least in the back of their minds, and don't like their 7 to be broken(打断) by something unexpected. Young people often 8 their parents angry at their choices in clothes, in hobbies and in music. But they don't mean to cause any trouble. They just don't want to be like anyone 9. For many years, you will be completely under your parents' control. If you plan to 10 your life, you'd better win your parents and try to get them to understand you.  11 your parents see that you have a high sense of responsibility(责任感), they will certainly believe you, and you can do 12 you want to do.