{ } TV sereveral times ,the news was taken up though the

题目

{ } TV sereveral times ,the news was taken up though the
选项为 Having broadcast over ,Broadcasting by ,Broadcast on,Being broadcast through ,该选哪一个,为什么

答案

Being broadcast through
broadcast news,广播新闻,广播信息,
the news在本句中是主语,前面用现在分词作状语,而且是被动语态,因此是
being broadcast（分词和原型一致）