2. 外语
  3. A. risen B. smooth C. friendly D. exceeding E. rapid F. vary G. expensive H. sudden I. while J. raised K. response L. fo

A. risen B. smooth C. friendly D. exceeding E. rapid F. vary G. expensive H. sudden I. while J. raised K. response L. fo

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问题     A. risen B. smooth C. friendly D. exceeding E. rapid
    F. vary G. expensive H. sudden I. while J. raised
    K. response L. for M. executing N. charge O. bans
    Many people like to travel. The problem is getting your pet to the destination. In recent years, transporting pets on flights has grown more complicated and more【C1】______. All major carriers have significantly raised the fees that they【C2】______ for bringing pets on board, matching, or in some cases,【C3】______ the fee for children flying alone. Fees【C4】______ depending on whether the pet flies under your seat, or as checked baggage, which involve extra handling.
    Pet safety has also become a more pressing issue. Incidents of animals being lost, injured or dying have recently【C5】______.Thirty-nine animals died while flying aboard commercial jets last year, compared with 22 two years ago.
    While those numbers are a small percentage of the hundreds of thousands of animals flown by the airlines each year, they expose the dangers that pets may face while traveling. Not that airlines don’t anticipate risks, but that some pets are liable to breathing problems or【C6】______ illness.
    Delta, which reported several dog fatalities last year, has changed its policy and now【C7】______ some breeds from its planes.
    Despite the inconveniences, airlines say they are going out of their way to be pet friendly. Last year Frontier Airlines, in【C8】______ to demand, began accepting pets in the passenger cabin for the first time. Previously it had transported pets only as baggage.
    If you are considering putting your pet on a plane, here are a few tips to【C9】______ the process. Don’t wait until the last minute to book,【C10】______ airlines limit the number of pets in the cabin. Placing your pet on the floor of the car beforehand so it can feel the vibration as it will on a plane.
【C10】
选项
答案L
解析 空格处应填入连词，连接前后两个完整的句子。前一句是给出的建议“提早购票”，后一句解释说明原因“有数量限制”，前后两个分句构成因果联系。词库中连词for可表示原因，符合要求。
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