【每天学点交际口语】1、Call for service at any timeSorry to have kept you waiting. 对不起,让您久等了有事随时叫我;2、Thank you for waiting. 谢谢您的等待;Thank you for your comments. 感谢您的意见。【快速提高英语口语的秘诀:http://t.cn/zTHkOSY】