增加： 在缺词处加一个漏字符号 (^) 并在其下面写出该加的词。
删除： 把多余的词用斜线 (\) 划掉。
修改： 在错的词下划一横线, 并在该词下面写出修改后的词。
注意： 1. 每处错误及其修改均仅限一词; 2. 只允许修改10处, 多者 (从第11处起) 不计分。
A week before Earth Day, posters were put up around our school, called upon us to join in the actions for an even green earth. Our class came up with the idea to make better use of used materials after a heatedly brainstorm. We bring worn-out clothes and empty plastic bottles to our classroom, or turned those into dolls and small vases. We went to a nearby neighborhood and gave it away to the people there that weekend. All were very happy with those unexpected gift, especially little kids and elderly people. We did so very well that we invited to share our idea and experience with all the students of our school. We are proud of us and believe we can do more for a better world.
