{1:SHORTANSWER:~%100%had been waiting#An event that continued for some time in the past before another past event~%100%'d been waiting#An event that continued for some time in the past before another past event~%100%had been waiting---------#An event that continued for some time in the past before another past event~%100%’d been waiting#An event that continued for some time in the past before another past event}