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。每次错误仅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(＼)划掉。

修改：在错的词下画一横线，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。

Dear friends，

I'd like to offering some tips to those students who will go abroad so that you can avoid trouble and make your trip pleasantly.First of all，you should take good care with your passports and wallets.Secondly, you should never go out alone avoid getting lost.Thirdly, it is necessary to take some clothes and medicine in case the weather change and you might fall ill.In the addition，you should mind my behavior wherever you go and however you do.You should behave properly but establish a good image.

If you follow my advices，I am sure you will enjoy your trip.