小林的爸爸在市创建国家卫生城市活动中，收到了这样一条手机信息：一言一行都体现你的文明修养；一举一动，都代表我市形象。下列行为能树立我市良好形象的是（）
①尊重、理解环卫工人的劳动     
②积极参加公益活动，主动清扫街道垃圾　
③在公共生活中自觉遵守规则　   
④在公共场所吸烟

根据句意, 用适当的介词at, about, like, with或 for填空, 完成句子。

阅读短文，选择正确的答案。

    Chen Jie and Chen Lin are sisters. Chen Jie is 14. She's 2 years younger than Chen Lin. But she's taller than Chen Lin. Chen Jie is 46 kilograms. She's l kilogram heavier than Chen Lin. Chen Jie likes sports. She plays sports every day. So she's stronger than Chen Lin. Chen Jie has short hair, but Chen Lin has long hair. They often wear the same size shoes. They wear size 36. They love each other.