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：在错的词下面划线，并在改词下面写出修改后的词。
Dear Mom,
Mother's Day is coming. I'm sorry that I am abroad and can't send your flowers, so I'm writing to you. Mom, I know I have never expressed my thank to you before. But on today, at this special time, I just want to tell you loudly: I love you, Mom! Thank you so much by not only giving me life, but also teach me how to be a good person. Thank you for all you had done for me. Mom, though I may ∧often say it, I do love you. Nobody can take your part in my hearts. Whenever I am, I will always love you.
Wishing you good health and much happiness every day!
Your little girl，
Jennifer
