9．
An east China highway pile-up on April 2
nd has killed three people and injured 31others．That day was the first day of a three-day national holiday marking the Tomb-Sweeping Day．
Two people died in a local hospital where nine others are being treated．Another person died after treatment failed in a larger hospital in Wuxi where 22remain hospitalized，Changzhou traffic police updated on its official microblog account at Weibo．com．
The accident happened at the Changzhou section of the highway linking Shanghai and Nanjing．It drew public attention as people began posting photos and videos on Chinese social media WeChat and Weibo．Images showed dozens of trucks，buses and cars crashed into each other．People were standing on top of the vehicles．
Local police told Xinhua Press that at least two trucks，three buses and 20cars were involved．Rainy and foggy weather caused poor visibility and slippery roads．
What's more，it was difficult for ambulances （救护车）to get to the scene of the accident because the life emergency lane was filled with vehicles，which delayed the rescue of the injured．
The Ministry （部长） of Public Security told traffic departments nationwide to keep a look out for vehicles using the emergency lane occupancy．
All highways in China leave the right lane as the emergency lane．Some drivers，however，pay no attention to this rule．Therefore，the police call on drivers to follow the rule strictly and offer the injured more hope of being saved．
The ministry also asked the police to watch the traffic more carefully so as to quickly discover the potential （潜在的） danger．The police have decided to add electronic monitoring instruments to catch the violations （违规者） and heavily fine drivers for it．
28．Which of the following might be the cause of the traffic accident？A
A．It was rainy and foggy that day．
B．people passing by took photos there．
C．Many drivers stood on top of the vehicles．
D．Drivers don't know about the life emergency lane．
29．About the accident，which of the following is true according to the passage？C
A．There was no life emergency lane at the scene of the accident．
B．In China，the left side of the highway is used as life emergency lane．
C．The life emergency lane at the scene of the accident was full of vehicles．
D．The police have decided to reduce electronic monitoring instruments after the accident．
30．According to the passage，why do the police ask drivers to be off the emergency lane？C
A．They want to get a chance to fine drivers heavily．
B．They want to catch as many violations as possible．
C．They want to leave the injured more hope of being saved．
D．They have received orders from Chinese social media WeChat and Weibo．
