Not realizing who she was,the assistant was eager to serve her this time.

问题描述:

Not realizing who she was,the assistant was eager to serve her this time.
Not realizing who she was,感觉这句少了主语和谓语,求分析

这是高中的语法.
现在分词短语做状语,相当于一个原因状语从句,-------Since she didn't know who she was.因为从句的主语和主句的主语的同一个人,将从句改为由分词做状语形式.