be sure,make sure的用法及区别做题的时候应该注意什么?
问题描述：
be sure,make sure的用法及区别
做题的时候应该注意什么?
答
be sure确信,肯定I can't be sure.我不能肯定.make sure查明; 设法确保,确定You must make sure of the time and place.你必须把时间和地点弄清楚.Make sure at least two people from the marketing team can atten...