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 don't remember exact how old I was when I began to ride a bike. I only remembered how I practiced riding a bike in early years. When I first successfully rode a bike, that remains a vivid memory, my brother helped me with holding the back seat of the bike when I was riding. “Wow, I did it!” cried I, as soon as he noticed I was riding without his hands hold it! I learnt quickly, and soon, even though my feet were not touching the ground, but I was able to cycle around six kilometer a day to school! It's so lovely to remember which happened at that time.