根据所给的过渡性词汇完成文章 假如你是。针对我国假期选择出国旅游的人越来越多,但有的游客有不文明行为的现象,请给 21st Century Teens 编辑部写一封信。内容需要包括以下要点 : 1. 出境游热的原因,如经济发展的原因、人们对外国文化感兴趣的原因等; 2. 旅游中出现了一些不文明现象,如随地吐痰、乱扔垃圾等; 3. 你的态度和看法。 Dear editor, At present, more and more people choose to travel abroad when they have holidays. There are some vital reasons. With the development of people’s living standard and economy, they can ______ . Besides, more people ______ , therefore, ______ . However, some people behave ______ . For example, they ______ , as well as ______ , which not only ______ , but also ______ . Personally, since ______ , we should always bear / keep it in mind that ______ . Thank you for your attention. Yours, LiHua