I'm so sorry to keep you waiting. 很抱歉让你等我。

Sorry I kept you waiting so long. 很抱歉我让你等了那么久。

Come on now, don't keep me waiting. 快点，不要让我一直等着。

If you're serious about a guy, keep him waiting for at least five dates. 如果你想真心和某个人在一起，就至少让他等五六次约会后再说。

How was Henry and June's date last night? 昨天晚上亨利和琼的约会怎么样？

June kept him waiting for over an hour. 琼让亨利等了一个多小时。