Where do I know you sorry? 这个口语什么意思啊 谢谢

Where do I know you sorry? 这个口语什么意思啊 谢谢 Do you know where Niagara ______(fall)is?Sorry,I don't know Do you know where Mike is now?Sorry,I don't konw,__ 、sorry .i do not know. i only know. i love you. forever是 什么意 Do you know where I can e____money. I have been just your side you do not know 什么意思中文、谢谢 快点 Do you know--------last night?Sorry,I don't know Do you know ___?-Sorry I don't know. -Do you know ___?-Sorry,I don't know Do you know where sugar is 什么? -Where do you think____he____the computer?.-Sorry.I have no --Mary,do you know_________________? .--Sorry, I don’t know