In common with many countries, Britain has serious environmental problems. In 1952, more t

han 4,000 people died in London because of the smog. The government 【26】______ new laws to stop smog from coal fires and factories and the 【27】______ improved a lot.

Today, London is much cleaner 【28】______ there is a new problem: smog from cars. In December 1991, there was very 【29】______ wind in London and pollution 【30】______ a lot, which led to 160 deaths in just four days.

【31】______ of the problem is the new" out of town" shopping centers. In the past, people often 【32】______ to shops near their homes or went by bus. Today, many people drive to the new shopping centers. 【33】______ , the small shops have 【34】______ and more people have to go a long way to 【35】______ their shopping.

Critics say that Britain needs better and cheaper public 【36】______ Many people are trying to 【37】______ the use of cars in Britain. Some cities now have special bicycle 【38】______ and many people ride to work. Some people also 【39】______ to work together in one car to reduce the pollution and the 【40】______ .

Sometimes people take "direct 【41】______ ". In 1995, for example, many people wanted to 【42】______ a new road near Newbury. They built houses 【43】______ trees and lived there for many months. It 【44】______ a long time to force the people out of the trees 【45】______ work on the road could continue.

【26】

A．introduced

B．comprehended

C．embraced

D．deduced