单项选择题

Questions 17-20 are based on the following passage. You now have 15 seconds to read Questions 17-20.
The passage mainly focuses on ______.

A．the importance of TV
B．the function of TV
C．the production of TV
D．the evolution of TV

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单项选择题Last year, how many flights traveled through O’ Hare according to the Federal Aviation Administration

单项选择题Judy Blume writes mostly about ______.

Questions 17-20 are based on the following passage. You now have 15 seconds to read Questions 17-20. The passage mainly focuses on ______. 您的浏览器不支持 audio 元素。