The two old sisters, ______ so long, held each other and burst into tears.A.being separatedB.having been separatedC.having separatedD.had been separated
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B解析考查非谓语动词。Separate与句子主语The two old sisters为动宾关系与谓语动词held为先后关系故用现在分词的完成被动式作状语。句意：分离很长时间后这两位老姐妹拥抱在一起热泪盈眶。