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- I am sorry to have kept you waiting long. 对不起让你久等了。
- I'm sorry to have kept you waiting. 对不起，让你久等了。
- We are sorry to have kept you waiting so long. 对不起让你久等了。
- I am very sorry to have kept you waiting. 叫你久等了，很抱歉。
- I'm sorry to have kept you waiting for so long. 对不起，让你久等了。
- I'm sorry to have kept you waiting,sir and madam. 先生和夫人，很抱歉让您等待。
- I'm very sorry to have kept you waiting,sir. 先生，抱歉让您久等了。
- We are sorry to have kept you waiting. 对不起让你久等了。
- Sorry to have kept you waiting long. 对不起让你久等了。
- We are very sorry to have kept you waiting,sir. 先生，很抱歉，让您等这么久。
- We are sorry to have kept you waiting long. 对不起让你久等了。
- I'm sorry to have kept you waiting so long. 真抱歉让你久等了。
- I am sorry to have kept you waiting so long. 让你等候这么久真对不起。
- I am sorry to have kept you waiting. 对不起让你久等了。
- Sorry to have kept you waiting such a long tine. 让你久等了实在抱歉。
- Very sorry to have kept you waiting. 叫你久等了， 很抱歉。
- We are very sorry to have kept you waiting, sir. 很抱歉，让您等这么久。
- Im sorry to have kept you waiting. 真对不起，让你等了。
- Sorry to have kept you waiting so long. 对不起让你久等了。
- Mr. Smith, we are sorry to have kept you waiting. 史密斯先生，我们很抱歉让您久等了。
