I am sorry that I don't know you want to take part in the competition.哪里错了?

为什么I am sorry 后要加to do?例：I am sorry to hear that I am sorry for that i am sorry i do not see I am sorry that I am late 同意句 I am sorry to hear that是什么意思? i am sorry to hear that.是什么意思? I am very sorry to hear that. i am sorry for that 的回答 I am sorry to that hear . i am sorry _____(say) that. I am sorry for that i have disturb you .from now on ,i never do that again 求翻译 I am sorry to do 和I am sorry for doing是同义句还是各自有不同的用法?比如 I am sorry to hear that 和 I am sorry for losing your book,它们能否变为同义句：I am sorry for hearing that 和 I am sorry to lose your book? I am sorry .I intend no o_____when I said that. I am sorry for disturbing you,but I promise that I won't ever do it again.么意思 I am sorry to hear that的中文I am sorry to hear that的中文 That girl,with regard to the past,because at that time I am sorry to say I do not know 翻译英语 Baby,I am sorry to do that...A lost soul... I am very sorry ——————（do） that.填什么?