I could see a whale ________ by a pack of about six other killers.A.having been attackedB.being attackedC.to be attackedD.be attacked
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B解析考查非谓语动词用法。本题中的whale与attack构成被动关系。存在两种结构：See sth done看见某事被做；see sth being done看见某事正在被做。句意：我能看见一条鲸鱼正在被大约6个人攻击。所以选择B。