I do not know those students because they are new___(face)to me

I do not know I do not know 求翻译：Interpreting those who know me know I do not know who I want anything else for me I do not know those students because they are new___(face)to me 请问 I DO NOT KNOW sorry,i do not know! Why I do not know those who do not know are not to blame ,those who do not wish to know is a shame. Those who do not know are not to blame; those who do not wish to know is a shame. I do not know how to do I do not know what you I do not know _____ your home. I do not want to know I do not know what you i do not know your write I do not know ! 甚么意思? i do not know 是什么意识 I do not know是啥意思?