假定你校将举行一个成人仪式，你将作为代表在仪式上发言。请你按以下内容要点准备一篇英文发言稿。
1.过去对成年的向往；  2.现在的感受和认识；  3.将来的目标及措施。
参考词汇：责任 responsibility
注意：
1.词数100~120左右；     2.可以适当增加细节，使行文连贯；
3.发言稿的开头与结束语已为你写好（不计入总词数）
Good morning，everyone！
The topic of my speech today is “thoughts on becoming a grown-up”.
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Thank you for listening.