为何这两个in

Hans Christian lived in an attic in an old house.这是什么结构？

She was sent out on the streets to beg.还有这里的sent out组成的及物动词为何后面还加介词？

问题1、lived in an attic in an old house 住在一所老宅的阁楼里，in an attic为地址状语，in an old house为后置定语修饰attic。

问题2、这是一个被动语态，主语she就是send out的承受者，on the street为地址状语，to beg为目的状语。