第148页 - 学习与评价八年级英语译林版江苏凤凰教育出版社

In 1952.

It introduced new laws to stop smog from coal fires and factories.

Because of the air pollution from cars.

Better and cheaper public transport.

They are trying to reduce the use of cars./They go to work by bike or car pool with others.

（更多请点击查看作业精灵详解）