此题要求改正所给短文中的错误。对标有题号的第一行作出判断：如无错误，在答题卡相应的的位置上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：
此行多一个词：把多余的词在答题卡相应的位置上用斜线（\）划掉。
此行缺一个词：在答题卡相应的位置上写出该加的词，并附带前（后）词。
此行错一个词：在答题卡相应的位置上写出该该错和改正后的词。
注意：原行没有错的不要改。
Christie was one of my best friend at high school      1

At that time, we often spend time together.         2

Thank to her help, I made great progress in my          3

study. Last year, she decided to study abroad. In      4      
other words, we would be separated for long time.      5      
Before her leaving off, I prepared a gift to show      6      
my best whishes to him. She said it was the best         7      
gift she has ever had. From then on, we've         8      
kept touch with another through e-mails. I          9      
look forward to see her again in the near future.      10