1 . 听下面一段独白,回答以下小题。
1. In winter what do the road workers work for?
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2. Do the workers build the roads only for the airport?
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3. What machines can clean up snow on the roads easily?
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4. Where must snow be pushed?
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5. Why can you take an easy trip in the winter time?
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1. In winter what do the road workers work for?
2. Do the workers build the roads only for the airport?
3. What machines can clean up snow on the roads easily?
4. Where must snow be pushed?
5. Why can you take an easy trip in the winter time?
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