__1__(pollute) these days.

　　Dave：That's true. Fewer and fewer people__2__(drive) cars to work since the government started

　　the traffic control two months ago.

　　Rose：But the control is going to end __3__ two weeks. What'll happen then? Are cars coming back to the road?

　　Dave：That's true, too, although we all hope __4__ will never end. On the other hand, the traffic control has made things tough for people driving cars.

　　Rose：But it's worth the trouble.

　　I believe clean air is

　　__5__

　　most important thing.

　　Dave：However, many people don't think so. __6__ they can't drive cars, they'll even have __7__(difficult) getting to work.

　　Rose：They can choose to take a bus

　　__8__ the subway. And they can even ride a bicycle. There're many other ways to choose from, actually.

　　Dave：Some people think buses are too crowded and riding a bicycle seems very __9__(tire)．

　　Rose：Anyway, it's still __10__(well) than being trapped in a traffic jam under grey clouds and in dirty air.

　　文章大意：文中，两人讨论了交通限制条例带来的变化以及人们对该条例的看法。

　　答案：

　　1．polluted　be polluted“被污染”。

　　2．have driven　由从句since the government started

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