1、Sorry to keep you waiting
sorry
英 [ˈsɒri] 美 [ˈsɑ:ri]
adj.遗憾的;对不起的;无价值的，低等的;感到伤心的
I am sorry to keep you waiting so long.
对不起，让你等了这么久，塞车了。
2、I'm sorry to have kept you waiting
waiting
英 [ˈweɪtɪŋ] 美 [ˈwetɪŋ]
n.等候;（宫廷中的）侍奉;侍女;侍奉期间
adj.等待的;（尤指因迟到）让人等候;服侍的;（用于告诉某人立刻行动）你还在等什么呢
v.等待;等候( wait的现在分词 );（尤指长期地）希望;盼望
I'm sorry to have kept you waiting, sir and madam.
先生和夫人，很抱歉让您等待。
3、Sorry,keep you waiting
keep
英 [ki:p] 美 [kip]
vt.保持;保留;遵守;阻止
vi.（食品）保持新;保持健康
n.保持，保养;供养，抚养;生活，生计;饲料；牧草
Sorry to keep you waiting, I've got it.
对不起，让您久等了，我找到了。
4、I'm sorry to have kept you waiting for a long time
for a long time长久；且；久；日长岁久
I've been waiting for a long time, are you the person I'm looking for?
我在人生路上等待了很久，你是我在等的那个人吗？
5、Sorry to have kept you waiting for so long.
waiting等候; 侍奉; 侍女; 侍奉期间; 等待的; 让人等候; 服侍的; 你还在等什么呢; 等待; 等候( wait的现在分词 ); 希望; 盼望
so long再见
The moment I had been waiting for so long was sure to come at last.
我等待已久的那个时刻终于要来临了。
waite
for
so
long.诚心为你解答，给个好评哦亲，谢谢了
对不起，让你久等了Sorry,keep you waiting
抱歉让你久等了I'm sorry to have kept you waiting for a long time本回答被提问者采纳