Occupied with her thesis,she has been in the library these days.我选Having occupied为什么不对?
问题描述：
Occupied with her thesis,she has been in the library these days.我选Having occupied为什么不对?
答
这是过去分词,
=Because she is occupied with her these（因为她忙于论文,）
要是用having occupied with就没有这个含义了.
但
你可以说：
Occupying herself with her...,she has...
这就是主动了.