分类：教育/科学-外语学习-英语考试
问题：单选题目we___forquitealongtime.A.wer 
we ___ for que a long time. A. were keeping waited B were kept waited C. were keeping waiting D. were kept to be waiting 请说明理由 
回答：D. were kept to 被动语态,be waiting for 持续性的动作,后面有个状语for a quite long time.