When Daniel woke up yesterday morning, he found he was a bit late for school, so he started running to catch the bus. Moments later, he saw a dog, but not its lead. He tripped over the lead and fell down. He jumped up quickly, went on running and got on the bus. After a while an old coach broke down in the middle of the road, and the driver couldn’t move it. It was eight o’clock, the middle of the rush hour, so it soon created a terrible traffic jam. The bus driver tried to go round the coach. Unfortunately a taxi was coming in the opposite direction. The driver tried to stop the taxi, but he couldn’t prevent the accident— the taxi crashed into the front of the bus! Luckily nobody was hurt.
When Daniel finally got to school out of breath, the Science lesson had been on for five minutes. Daniel said sorry to the teacher and sat at his desk. He reached out for his school bag— no, it was nowhere to be found.
“Where is my school bag?” Daniel was puzzled. Suddenly he realized that he had left it on the bus. Bad luck!
What does the underlined word “tripped” mean?

A．扔掉

B．拣起

C．绊，绊倒

D．跨越

What is the order of the accident?
①A taxi was coming in the opposite direction
②The bus driver went round the coach.
③An old coach broke down.
④The taxi crashed into the bus.

A．①→④→②→③	B． ②→③→①→④
C．③→②→④→①	D．③→②→①→④

What is the best title for this passage?

A．An unlucky day	B．A happy day out
C．A traffic accident	D．A strict teacher