题目内容：

文中共有10处语言错误，每句中最多有两处。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(＼)划掉。

修改：在错的词下画一横线，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；只允许修改10处，多者（从第11处起）不计分。

Li Ming went to the park in last Saturday after he had already finished his homeworks. He was saw several boys skating on the pond happily. Suddenly he hear a cry for help. Looked ahead, he found one of the boys had fallen into the water. Li Ming jumped into the icy water immediately and managed to pull the boy to safety. Then the boy was gave first aid and soon came to myself. The boy’s parents came soon after receive the phone call. They were very thankful Li Ming, which was trembling there with cold.