I1完形填空
I1[2014·广东卷] 阅读下面短文，掌握其大意，然后从1～15各题所给的A、B、C和D项中，选出最佳选项。
Parents feel that it is difficult to live with teenagers. Then again, teenagers have __1__ feelings about their parents, saying that it is not easy living with them. According to a recent research, the most common __2__ between parents and teenagers is that regarding untidiness and daily routine tasks. On the one hand, parents go mad over __3__ rooms, clothes thrown on the floor and their children's refusal to help with the __4__. On the other hand, teenagers lose their patience continually when parents blame them for __5__ the towel in the bathroom, not cleaning up their room or refusing to do the shopping at the supermarket.
The research, conducted by St. George University, shows that different parents have different __6__ to these problems. However, some approaches are more __7__ than others. For example, those parents who yell at their children for their untidiness, but __8__ clean the room for them, have fewer chances of changing their children's __9__. On the contrary, those who let teenagers experience the __10__ of their actions can do better. For example, when teenagers who don't help their parents with the shopping don't find their favourite drink in the refrigerator, they are forced to __11__ their actions.
