2. 考研
  3. Many people like to travel. The problem is getting your pet to the【C1】______. In recent years, transporting pets on flights has

Many people like to travel. The problem is getting your pet to the【C1】______. In recent years, transporting pets on flights has

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问题     Many people like to travel. The problem is getting your pet to the【C1】______. In recent years, transporting pets on flights has grown more【C2】______—and more expensive. All major carriers have【C3】______raised the fees that they【C4】______for bringing pets onboard, matching, or in some cases,【C5】______. the fee for children flying alone. Fees【C6】______depending on whether the pet flies under your seat, or as checked baggage, which【C7】______extra handling. Pet safety has also become a more【C8】______issue. Incidents of animals being lost, injured or dying have recently【C9】______. Thirty-nine animals died while flying aboard【C10】______jets last year, compared with 22 two years ago.
   【C11】______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【C12】______risks, but that some pets are liable to breathing problems or【C13】______illness. Delta, which reported several dog【C14】______last year, has changed its policy and now【C15】______some breeds from its planes.
    Despite the inconveniences, airlines say they are going out of their way to be pet【C16】______. Last year Frontier Airlines, in【C17】______to demand, began accepting pets in the passenger cabin for the first time【C18】______it had transported pets only as baggage.
    If you are considering putting your pet on a plane, here are a few tips to【C19】______the process. Don’t wait until the last minute to book, for airlines limit the number of pets in the cabin. Placing your pet on the floor of the car beforehand so it can feel the【C20】______as it will on a plane.
【C18】
选项 A、Usually
B、Generally
C、Obviously
D、Previously
答案D
解析 空格前的句子意思为“首次允许宠物进入乘客舱”，这是一种新的做法，空格后的句子表明“只是将宠物作为行李进行托运”，并采用过去完成时had transported，可知是以前的做法，所以选Previously“以前”。
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