When my wife asked me to pay the bill after the meal, I found I ________ no money on me．
A.happened havingB.happened to haveC.was happening to haveD.had happened to have在线课程B
解析：
由于happen在表示“碰巧”时不用进行时态，其后只接不定式，故排除A、C两项。句中动作不表过去的过去。