请教一英语试题When he came back,he found the bag he had _____ over

作补语
只有两类动词可以加现在分词作宾补
1）感官动词：see hear watch feel notice observe keep find listen to look at
2）使役动词：have get catch leave set
值得注意的是：要想用现在分词来作宾补 只能是用于这些词后 但是并不代表这些动词后的宾补形式都要用现在分词（有些后面可以加不带to的不定式作宾补）
eg.I saw him singing now.
Don't have the students studying all day.
注意 ：宾语与作宾补的现在分词之间存在逻辑上的主谓关系 即宾语是现在分词动作的发出者

B

he had left是the bag 的定语，着是find加宾语加宾补的结构，现在分词短语hanging over the seat做宾补表状态。

he had left，是过去完成时，leave应用过去分词。
hanging over the seat 的使动者是bag，用现在分词即可

he had left 作 the bag 的定语
hanging over the seat 表示bag的状态