题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

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. 每处错误及其修改仅限一词。

2. 只允许修改10处，多者（从第11处起）不计分。

I can’t wait to tell you the decision my parents had just made. They plan to give birth to a second child. How excited it is! Being the only child in the family, most teenagers like you grow up lonely, that does harm to our psychological health. However, things will change from now on. I am going to have a sibling to play. I will help my parents looking after my sibling when he/she is born, ensuring that he/she grows up happy with love and affection all around. However, I am afraid that I know little about how to take a good care of a baby and how to set a good example to him/her. I want to get some advices from you but I am looking forward to your early reply.