I am sure of his braveness 这里为什么用of为什么这里用OF而不用TO,

I am quiet sure of it,too. I am sure of his braveness 这里为什么用of为什么这里用OF而不用TO, i am sure he will do the work( to )his best of his ability为什么不用with I am sure he will do the work to the best of his ability.麻烦对该句结构分析, His mother might be at home ,but i am not sure of it .为什么要用might 而不是must 呢 、 I am sure I am sure that I am sure we I am sure. I sure am是什么意思 he is one of the students who,I am sure,always do_____best.his还是their哦到底该哪个哟,有的说是his,有的说是their,晕了 I am in favor of his suggestion. Are you sure的回答 速求可以用 Yes ,I am Yes,I am sure of that 还有Yes,I am sure 呢 Jack is one of those men who I am sure always do ( )best even in the most difficult situations.A his B your C their D one's He is one of these men who I am sure,always do ____ best even in most trying circumstancesa,his b.their为什么选B 主语怎么判断? a bear asked his mother ,“Mommy ,am i a real bear?___you are.这儿是用sure好还是用of course好?course.但我认为sure也行,到底是什么呢? 用I AM SURE造句 I am not sure是什么意思