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： 每处错误及修改仅限一词；
只允许修改10处，多者（从第11处起）不计分。
I received a handwritten letter from the friend last week. I got one or two when I was a child but I never expect to receive one again. In this rapid changing world, in most case we use social media to keep in touch. The letter reminded me that this form of communication still exist, and that there are reasons in it to exist. People today are connected more, and the pictures I post on our social media accounts that are widely viewed by people we don't even know. However, letters represent a slow pace and allow us control what we tell our friends. In this way, our conversations don't involve so many irrelevant things, but the slow pace makes the contact long-lasting.
