The village seemed deserted, the only sign of life ________ some trees waving in the howling wind．A.wereB.beingC.wasD.to be
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B解析考查句子结构。句译为：村庄似乎废弃了，唯一的生命迹象是一些树在狂风中摇摆。由于前后两句的主语不同，所以后半句是独立主格结构，相当于and the only sign of life were some trees waving in the howling wind。waving in the howling wind是后置定语，修饰trees。