填空题

For a restless executive, air travel used to mean ______.

【参考答案】

a communications black-out
<上一题 目录 下一题>
热门 试题

填空题
Besides offering the communication service to the passengers, this new system will also improve ______.
填空题
Many airlines prefer to ______ rather than take long time to modify the existing aircrafts.
相关试题