----Areyoutired,Ken?----Yes.Youknow,I 国语站 题库 1.95W 大中小设置文字大小 问题详情：---- Are you tired, Ken?---- Yes. You know, I _____ for almost 12 hours! A. have been working B. am working C. had worked D. will work【回答】A知识点：动词时态题型：选择题 TAG标签：YesYouknowI AreyoutiredKen #
