很多城市都在创建文明城市。文明城市的创建需要每个人的努力。然而，我们时不时会在公共场所看见一些不文明的行为，请你就此写一封倡议书。
内容包括：
1.你在公共场所经常见到的两种不文明行为；
2.提出一些文明准则（至少两种）；
3.号召大家做一个文明的人。
写作要求：
1.不能照抄原文；不得在作文中出现学校的真实名称和学生的真实姓名；
2.语句连贯，词数80个左右。作文的开头和结尾已经给出，不计入总词数。
参考词汇：文明城市civilized city
Dear citizens，
_____.
Thank you all.

【考点】倡议书．

【答案】Dear citizens，
    As we all know，our city is aiming at being a civilized one.
    Everybody should make an effort.However，some people still behave badly in public.For example，they smoke in no-smoking areas or spit on the floor.These actions are rude and they are bad for people's health.
    To make our city a better one，we should do something，such as waiting in line while getting on the bus and keeping our mobile phones off during the meeting.
    Let's try our best to be a polite person，no matter where we are.
    Thank you all.