假定英語(yǔ)課上老師要求同桌之間交換修改作文，請(qǐng)你修改你同桌寫(xiě)的以下作文。文中共有10處語(yǔ)言錯(cuò)誤，每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加：在缺詞處加一個(gè)漏字符號(hào)（∧），并在其下面寫(xiě)出該加的詞。
刪除：把多余的詞用斜線(xiàn)（\）劃掉。
修改：在錯(cuò)的詞下劃一橫線(xiàn)，并在該詞下面寫(xiě)出修改后的詞。
注意：（1）每處錯(cuò)誤及其修改均僅限一詞；
（2）只允許修改10處，多者（從第11處起）不計(jì)分。
    I am fond of my sister but she has one serious shortcoming.She can be real stubborn.Although she didn't know the best way of get to places，but she insisted that she organize the trip properly.Now I know that the proper way is always her way.I kept asking her，"When are we leaving and when are we coming back？" I asked her that she had looked at map yet.Of course she had not，my sister doesn't care about details.So I told her that the source of the Mekong is in Qinghai Province.She gave me a determined look ----the kind that said she would not change her mind.When I told her that our journey would begin in an altitude of more than 5，000 meter，she seemed to be exciting about it.When I told her the air would be hard to breathe and it would be very cold，she said it would be an interesting experience.I knew my sister well.Once she has made up his mind，nothing can change it.Finally I had to give in.