The advertisement of Nao Bai Jing has been seen ________ hundreds of times this week．A.to broadcastB.have broadcastC.broadcastingD.broadcast
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D解析这句句子的意思是“本周我们已经在电视上看见脑白金的广告被播放了几百次”。在这个句子中broadcast和advertisement是动宾关系，所以应用于see sth done的句型中。broadcast的过去时和过去分词仍是broadcast，所以正确