Sorry to have kept you waiting for such a long time.sorry后面为什么要加to?have kept 是现在完成时的形式,意思是不是“让你保持等待很长一段时间的状态”?

I am sorry ____you waiting.to keepkeepingto have kept sorry you waiting sir (A)to have kept(B)have kept(C)to kept选那个能告诉我选那个的原因吗最好能说明理由 I am sorry to ( ) you waiting so longA.kept B.be keeping C.have keep D.to be kept 英语改错 “I'm sorry to have kept you to wait for so long” i am sorry to have kept you waiting 中的to 后面是什么成分啊? I'm sorry I have kept you ______ so long.是waiting还是to wait? I am sorry to have kept you waiting for a long time. I am sorry to have kept you waiting for a long time. I am sorry to have you kept you waiting.句中不定式作什么成分 i'm sorry to have kept you waiting.句子各成分请分析下! I am sorry to have kept you waiting.这句话的谓语是? I'm sorry to have kept you waiting.Oh,( )搷什么 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 [D100] I am sorry to _____ you waiting outside so long.A.keep B.be keeping C.have kept D.to be kept翻译并分析 i'm sorry to have kept you writing for a long time可以省TO吗?为什么? -Sorry to have kept you waiting for so long a time.Sorry to have kept you waiting for so long a time.-_____________.Not at all Don't say so I don't think so It doesn't matter Sorry to have kept you waiting for such a long time.sorry后面为什么要加to?have kept 是现在完成时的形式,意思是不是“让你保持等待很长一段时间的状态”? i'm sorry to have kept you waiting for a long timewaiting可以不加ING吗?为什么?