Mr. Evans lived in a city. He was a maths _1_ three years ago. He taught well and his students _2_him. So he decided to work in the middle school in his life. But a terrible accident _3_ his fortune （命运）。
One spring he took his class to _4_ a place of interest. The children saw a lot of _5_ things and had a good time there. But on their way to the school, their _6_ was hit by a truck because the young driver was drunk （醉酒的）。 Five students _7_ and more than half of the children were _8_ in the accident. He didn't know how it had happened and was very _9_ it. After he came out of hospital, he left the school and became a _10_. He tried his best to stop the drivers from breaking the traffic regulations （违反交通规则）。 He worked hard and was strict with the drivers. So they were afraid of him.