I'm sorry to have kept you waiting so long.
I'm sorry to have kept you waiting so long.
I'm sorry to have kept you waiting so long 和i' m sorry to ke
单选题 ---I’m sorry to have kept you waiting so long.--- 1.Don’
I'm sorry.I have kept you ()for me so long.A:wait B:waiting
Sorry to have kept you waiting so long.I didn't know you__he
I'm sorry to have kept you waiting long. -----Never mind. I
i'm sorry to have kept you waiting long.never mind.I( )here
I’m awfully sorry to have kept you waiting for a long time.
i'm sorry to have kept you waiting for a long time
I'm sorry I have kept you ______ so long.
分析语法 i'm sorry to have kept you waiting.
I'm sorry to have kept you waiting.