根据短文内容和所给的中文提示, 用单词的正确形式填空. (限填一词)
As we know, cars have made our life more convenient _________比 before. But on the other hand, they also bring us many problems, such as air __________污染 and traffic __________(交通事故).
To tell the truth, traffic safety is everyone’s business. We must obey the rules. For _________(例子),we must walk on sidewalks. When we __________(穿过)zebra-crossings, don't _________(忘记) to stop and look right and left. Don’t play on the ___________(公路). Never run _________(快地) through red lights. It is very dangerous to talk on your mobile phone while _______(驾驶). If all of us pay ____________(注意) to our personal safety, then cars will be our friends.
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