I would love ________ to the party last night but I had to work extra hours to finish a report．
A.to goB.to have goneC.goingD.having gone在线课程B
解析：
从后半句“but I had to work extra hours to finish a report”可知，昨晚想去参加晚会但由于要加班没有去成。would love to have done sth．表示“本想去做而未做成”，would love to do表示目前的意愿及想法。