假设上周六晚上，你们全家在一家饭店就餐。请你根据以下要点提示，用英语写一篇短文，描述事情发生的经过，并适当加以评论。
要点提示：
1. 邻桌年轻人大声说话、吸烟。
2. 你请他们不要那样做。
3. 他们不听，反而嘲笑你。
4. 你认为：①他们在公共场所那样做是不对的。
②年轻人是祖国的未来，应该......
参考词汇：嘲笑laugh at
要求：
1. 词数80左右，短文开头已给出（不计入总词数）。
2. 要点齐全，行为连贯，可适当发挥。
【优秀满分范文】
Last Saturday evening, all my family had dinner in a resturant.
We enjoyed ourselves while we were at table. However, some teenagers sitting beside our table began to talk and laugh loudly. What's worse, they began to smoke in the restaurant, which made us angry. After a while, I stood up and advised them to stop smoking and behave themselves. To my surprise, they didn't follow my suggestions. Instead, they laughed at me, saying that I was too young and too naive.
In my opinion, it's wrong to do that in public. The future of our courtry lies in teenagers, who should not only obey the rules in public but also make contributions to the society.
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