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：在错的词下面画一横线，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。
Yesterday I had my twin sisters in the pushchair and went to shop. I had two paper bags of daily product. Just as I stepped onto a busy main road, both of the bags split. As I tried to pick them from the ground, the pushchair slide downhill. At that moment, I couldn't choose but to watch it going fast. Suddenly the well-dressed man grabbed the girls and got them to safe. He then came to me to check what I needed any extra help. With his timely help, my story might not have had so a happy ending. My faith in humanity has been restoring since that moment.
