Secretary Gates said he did not make any specific request of the Saudi minister and the minister did not make any specific offer.

VOA: standard.2009.05.06

Because when you make this request "make sure," that the person would either say "Yes, I've done it," or "No, I haven't,"

当你作出“Make sure”的要求时，对方会说，“是的，我已经做了” 或者 “不，我还没做呢。”

Make sure 课堂 - SpeakingMax英语口语达人