How do your parents get to work? Do they drive? If they do, you might try to tell them to walk to work for a day. On May 16, Du Shaozhong, deputy director (副局长) of the Beijing Environment Protection Bureau (北京市环境保护局), didn't drive to work. Instead, he walked the six kilometres to his office. "This is to show my support for 'No Car Day'," he told reporters.
The 'No Car Day' campaign (活动) asks Beijing drivers to leave their cars at home one day each month and walk to work. It also calls on Beijingers not to use cars on June 5, which is World Environment Day. So far, more than 200,000 drivers have voiced their support for the campaign.
The "No Car Day" was first started by 34 cities in France on September 22, 1998. It was set up to protect the environment. So far, more than 1,000 cities in the world have had a "No Car Day". The first "No Car Day" in China was in Chengdu in 2001. Other cities including Taipei, Shanghai and Wuhan also have taken part in the campaign..
阅读以上信息，完成下面的短文，每空一词。
On May 16, Du Shaozhong chose to walk instead of _____1_____ to work because he thought this was a way to show his _____2____ for 'No Car Day'. The 'No Car Day' campaign also _____3____ Beijingers not to use cars on June 5, which is World Environment Day. So far, _____4_____ 200,000 drivers have voiced their support for the campaign. 34 French cities first started the "No Car Day" on September 22, 1998. Many Chinese cities have _____5___ in the campaign.