Ladiesandgentlemen,pleaseremain 国语站 题库 1.44W 大中小设置文字大小 问题详情: Ladies and gentlemen, please remain __________until the plane has come to a complete stop.A. sitting B. sit C. to sit D. seat 【回答】A知识点:非谓语动词题型:选择题 TAG标签:#