英语课上，老师要求同桌同学相互修改作文。假设以下作文为你同桌所写，请你对其进行修改。共有10处错误，每句最多两处。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（∧），并在此符号下面写出该加的词。
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）不记分。
3. 必须按答题要求做题，否则不给分。
My swimming experience is extreme interesting. There is a time when I swam like a rock.
This went on till one day when I was fishing with a friend of me at a nearby pond. I slipped
into it. Had my friends not come to my rescue, I would have been drowned. Ever since then,
I have come to know importance of learning to swim. I didn’t attend any training class
and learned it all by myself. I have no difficult swimming at all now. Though the way I swim look
awkward (笨拙的), at least it can keep me from floating. Thinking of this, I feel quite satisfying.