问题
选择题
He seemed______ to me at the party last month, but I can’t remember well now ．
A．to introduce
B．to have introduced
C．to be introduced
D．to have been introduced
答案
答案：D
考查seem to have done似乎已经做了什么，he和introduce是被动关系，用不定式的完成被动式，句意：上个月的聚会上好像有人把他介绍给我了，但我现在记不清了。选D.