i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？

填空:I don't know what ______ ______ .I don't know where ____ ____. I don't know when we shall start.(改为简单句) I don't know ____ ____ ____. Don't you know my telephone?____,I don't know.这是一句反意疑问句吗,怎么填? I don't know what I should take.(改为同义句）、 I don't know what ____ ____ I don t know how I should do it同意句I don t know how ____ ____ it I don't know if he ____(be) free tomorrow. I don't know if he ____ ( come ) sorry i don't know ,____ not call him I don't know. I don't know if I will depart for another cityI don't know ____ ____ depart for asnother city. How old is he? I don't know （变为同义句）I don't know ____ ____ I don't know if I will go there.I don't know ___ ____ go there. “i don't know you know i don't know I don't know about his job,and I dong't care句型转换 I don't know about his job ,____ ____ I care. I don't know what I should do to help you的同义句I don't know ____ ____ ____ to help you Oh,it's you. I'm sorry I ____ (don't) know you ____ (be) here. （改为同义句）I really don't know how I can use the recorderI really don't know ____ ____ ____ the recorder.顺便翻译一下 i don't know all of them 同义句要以i ____ know ____ of them 的形式改.......