Jackson found himself ________ around a tree and a giant man sta

Jackson found himself ________ around a tree and a giant man standing in front of him.
A、tying
B、tied
C、to tie
D、having tied
【正确答案】：B
【题目解析】：find sb+过去分词，表示：发现某人被…。himself与tie之间是被动的关系。