be sure that +从句

be sure that +从句 be sure that+从句和do be sure to do sth be sure of sth be sure+that从句 辩析be sure to do sth be sure to do sth be sure that+从句 sb.be sure of+从句和sb.be sure that+从句 有什么区别吗? 既然有be sure of sth,为什么宾语从句要用be sure that而不是be sure of that呢? sb.be sure that+从句中,从句是什么性质的从句?修饰主句中的那个成分? Be sure +that+从句 结构中that引导的是什么从句? be sure (of) that be sure加从句that可省略吗 （从句主语是物的情况下） I'm sure that 是什么从句?是be sure of that省略of的介词的宾语从句还是形容词的宾语从句? make sure 和 be sure that +句子