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。
I liked cycling very much. At age of twelve, my father bought me a bike as a birthday gifts and taught me how to ride. Every time my father took him out for practice, my little brother would come along. One day, we were practicing while suddenly my brother screamed to help. When we rushed to him, we saw a snake wind around a frog tightly. I beg my father to save the frog. Immediate he picked it up a long stick, trying to drive the snake away. About two minutes later, the frog was set loose, what made us so happy.
