I am sorry to have kept you waiting so long.这句为什么用to have ke

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/04/30 15:55:18

I am sorry to have kept you waiting so long.这句为什么用to have kept 而不是to keep 与时态有关系吗

与时态有关系,如果用to keep,就不能表达出来他一直在等待,而如果用to have kept waitting,这个完成进行时就能很生动的表达出是一直在等待,从过去一直持续到现在的一个状态.

I am sorry to have kept you waiting so long.这句为什么用to have ke I'm sorry to have kept you waiting so long 和i' m sorry to ke I'm sorry to have kept you waiting so long. --i am sorry to have kept you waiting long ---never mind .i i am sorry to have kept you waiting. I am sorry to have kept you waiting for a long time. 单选题 ---I’m sorry to have kept you waiting so long.--- 1.Don’ Sorry to have kept you waiting so long.I didn't know you__he I am t__ sorry I have kept you waiting long. I am sorry to have you kept you waiting.句中不定式作什么成分 I'm sorry to have you .so long这里为什么用waiting? I am sorry to have kept you waiting.这句话的谓语是?