单选题 The thief was brought in, with his hands ______ behind his back.
【正确答案】 C
【答案解析】小偷被带进来了,他的手被绑在背后.意思是“手被绑在背后”,having tied 是主动语态,to be tied意思是“将被绑”,being tied 意思是“正在被绑”。