from her parents she was left with her two young sisters--aged three and seven.A. Being

问题补充：

from her parents, she was left with her two young sisters--aged three and seven.

A. Being separated

B. Having been separated

C. Having separated

D. Had been separated

答案：

A. Being separated

(答案→)B. Having been separated

C. Having separated

D. Had been separated

解析：考查非谓语动词。Separate 与主语she为动宾关系，与谓语was left为先后关系所以要用现在分词的完成被动式做状语。句意：与父母分离后她和两个三岁和七岁的妹妹在一起。