As the Columbia Broadcasting System expanded its operations, soon become the largest radio network in the United States, it precociously recognized the potential for the rapidly evolving television broadcasting technology.

题库:邮政储汇业务员考试 类型:最佳选择题 时间:2017-06-30 14:21:17 免费下载:《简单单选》Word试卷

As the Columbia Broadcasting System expanded its operations, soon become the largest radio network in the United States, it precociously recognized the potential for the rapidly evolving television broadcasting technology.
A.expanded
B.become
C.largest
D.evolving

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