试题 试卷
题型：单选题 题类：常考题 难易度：普通
贵州省黔南2018-2019学年九年级上学期英语期末考试试卷
— the crowded traffic _____ the high living cost. The only reason is the badly polluted air.
—It doesn't matter, _______ you should be careful next time.
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