Withthe   61   (develop)ofindustry,airpollutionisgettin...

問題詳情：

With the    61    (develop) of industry, air pollution is getting more and more serious. In Beijing, many people suffer different kinds of illnesses because    62    air pollution. 　  Air pollution is caused by the    63   (follow ) reasons: about half of the problem is caused by vehicles. There are more and more cars, buses on the roads, and they give off   64   (poison) gases. 25% of air pollution is caused by factories. Another factor is the smokers. Smoking not only does harm to their health but to others.    65    these, about 10% of air pollution is caused by other reasons.        We    66    take some measures to fight   67  pollution. New fuel can be used to take    68    place of gas. We can also plant more trees. If everybody realizes the    69    (important) of environment and does something to stop pollution, the problem will    70   (solve).

【回答】

lopment      63. following    64．poisonous   des

ld/must   nst         rtance      solved

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