I'm sorry to kept you waiting long Never mind.I _ here for o
i'm sorry to have kept you waiting long.never mind.I( )here
I'm sorry to have kept you waiting long. -----Never mind. I
--i am sorry to have kept you waiting long ---never mind .i
―I’ m sorry to have kept you waiting .―Never mind.I ( )(be)
I'm sorry to have kept you waiting so long.
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 to have kept you waiting so long 和i' m sorry to ke
I'm sorry.I have kept you ()for me so long.A:wait B: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’
分析语法 i'm sorry to have kept you waiting.