作业帮I'm sorry I-------------(keep)you waiting for such a long time.
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/27 02:33:12
I'm sorry I-------------(keep)you waiting for such a long time.
I'm sorry I-------------(keep)you waiting for such a long time.
I'm sorry I-------------(keep)you waiting for such a long time.
过去式kept