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。每处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： 把多余的词用斜线( \ )划掉。

修改： 在错词下划一横线，并在该词下面写出修改后的词。

注意： 1）. 每处错误及其修改均仅限一词；

2）. 只允许修改10处，多者(从第11处起)不计分。

    Last weekend, I helped my grandparents with their trip to the Dalian. On Saturday morning, together with my grandparents, I search the Internet for the train schedule, the weather in Dalian, and some hotel informations. In the afternoon, they went to the train station and managed to buy two tickets for my grandparents although there had a long queue. After dinner, I packed the things into the suitcase, what my grandparents would need, such as clothes, glasses, an umbrella, a map. The next morning, I went to the station to show them off. Waved goodbye to them on the platform, I felt happily for them and wished them a safe journey.

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。

    The teenage year from 13 to 19 were the most difficult time for me. They were also the best and worse years in my life. At the first, I thought I knew everything and could make decisions by yourself. However, my parents didn't seem to think such. They always tell me what to do and how to do it. At one time, I even felt my parents couldn't understand me so I hoped I could be freely from them. I showed them I was independent by wear strange clothes. Now I am leaving home to college. At last, I will be on my own, I still want to have my parents to turn to whenever I need help.

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．每处错误及其修改均仅限一词；

2．只允许修改10处，多者（从第11处起）不计分。

    Halloween is on first day of November, and it was very popular in some western countries. On that day, people, especial kids, dress in horrible styles. We knock from door to door. Where people don't give them to sweets, the kids will play tricks on them. In China, more and more young people like to follow this trend. They'd like to join on some activities on that day. They wear strangely clothes and find some funs. When the night comes, they always have a party, sing and dancing together.

文中共有10处错误，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：在缺词处加一个漏词符号（∧），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。

    If you are on the street, you will see all kinds of people passing by. It's not rare to see people with bad manner. Some throw away rubbish casually. Some spits in public. Some even sit or lie on the ground, completely ignore others' feelings. People feel really badly about all these behaviors.

    To be honesty, smoking in public places makes me really annoying. As it is known to us all, smoking does harm for people's health. Not only is it bad for the smoker himself, but also it is threat to the public health. It was hoped that an effective way can be found to educate these people to behave well in public.

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．每处错误及其修改均仅限一词；

2．只允许修改10处，多者(从第11处起)不计分。

    Laughing is one of life's most simple pleasure. It is free. You can do it anywhere. Like the flu, laughter can spread easy among people. Often when we hear someone laughing in crowded room or a packed train, we start laughing too—even if we have no idea how.

    In fact, mental health can affect on physical health. Therefore, “Laughter is the best medicine” does not mean that I should not take medicine when you're sick. It simply means that have a positive outlook might help ease your troubles but make you cheerful. Besides, making others laugh with you is also an act what is joyful and kind.