用以下单词填空：subway lines,police officers,air pollution,train system,parking garages,business district
Dear Editor,
Life in this city is needs to be improved.For one thing,there are too many cars,and there is too much smog,especially at ruch hour.The ( )is terrible.This problem ie particularly bad downtown in the ( ).Too many people drive their cars to work.
So what should we do about it?I think there should be more ( )at busy intersections.They could stop traffic jams.We also need fewer( )downtown.The city spends too much money building them.It's easy to park,so too many people drive to work.On the other hand,the city doesn't spend enough on public transportation.There aren't enough( ),and the ( )needs a lot of improvement.
參考答案:1.air pollution
2.business district
3.police officers
4.subway lines
5.parking garages
6.train system