1 . What are the speakers mainly talking about?

A．A driver.

B．An accident.

C．An injury.

2 . 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。

This afternoon, as usual I ride my bike home after school. At a crossing, I accidentally knocked the old man off his bike. Shocked and frightening, I called my mom and told her that had happened. Later, we took him to a hospital nearby. In our relief, a thorough examination showed that nothing was seriously wrong with him. Before leaving the hospital, we helped him get bike fixed first but then waved goodbye to him.

I’m happy to have be taken my responsibility after the accidents occurred. More importantly, I’ve learned to be more caution in future.