Alltheguestatthepartyweredancingandsinginghappily 国语站 题库 1.23W 大中小设置文字大小 问题详情:All the guest at the party were dancing and singing happily __________ the electricity was cut off.A. untilB. whileC. whenD. because【回答】C知识点:连词题型:选择题 TAG标签:#