为什么不用Seating 而用seated呢?有ING的用法吗? he found lucy seated quietl

这句话里为什么用seated而不用seating? Seating和Seated的用法 I found him seated there,reading.为什么要用seated? I found him_in an armchair.A:seated B:seating.选哪个,为什么? remain seating 和remain seated remain seating和 remain seated 第六个为什么填seated不是seating,求仔细讲解 he let me be seated为什么不用let me seat Please remain--------?为什么答案是seated而不是seating?remain seating不 关于分词的用法如,seated.例句：Fasten seat belt whlie seated .这里的seated是 When I arrived, I found the boy_____there A seating B seated be seated 与seat的用法