增加：在缺词处加一个漏词符号（∧）， 并在此符号下面写出该加的词。
删除： 把多余的词用斜线（＼）划掉。
修改： 在错的词下面划一横线，并在该词下面写出修改后的词。
Postcard always spoil my holidays. Last summer, I went to Italy. I visited to museums and sat in public gardens. A friendly waiter teaches me a few words of Italian. Then he lent me a book. I read a little lines, and I did not understand a word. Every day I thought about postcards. My holidays passed quick, but I did not send some cards for my friends. On last day I made a big decision. I got up early and bought thirty-seven cards. I spent the whole day in his room, but I did not write a single card!
Postcard always spoil my holidays. Last summer, I went to Italy. I visited to museums and sat in public gardens. A friendly waiter teaches me a few words of Italian. Then he lent me a book. I read a little lines, and I did not understand a word. Every day I thought about postcards. My holidays passed quick, but I did not send some cards for my friends. On last day I made a big decision. I got up early and bought thirty-seven cards. I spent the whole day in his room, but I did not write a single card!