GRE Text Completion: JiJing 1373-GRE填空机经1373题 - O4VA_KP87LF24HJYA

Three of the nation's largest airlines could be operating under bankruptcy protection in coming weeks, analysts say, the latest sign of the industry's ____________ as it lurches through a historic transformation. A. upheaval B. exorbitance C. affluence D. peril E. convulsion F. opulence