问题
选择题
Having arrived at the station, _____.
A．it was found that the train had left
B．the train had left
C．the train was found left
D．he found that the train had left
答案
答案：D
. having done是现在分词的完成形式，与句子的主语之间是主动的关系，因此只有he能够执行这个动作。