Do you know who this dictionary belongs to?为什么用who,不用whom不是介词后要用whom吗

Do you know who is the a________ of this book? Do you know who am Do you know whose handbag this is?Do you kow who this handbag( )( 应该填什么?同义句转化 Do you know ___ tomato this is?It is on our desk.(who) do you know the people______came here this morning?a:which b:who c:those Do you know who won the Nobel Prize for literature this year Mo Yan _ Do you know the people _______ came here this morning?which who those Do you know who didn't p_____the exam this time?根据首字母填词 Ben,do you know who cooked food ____ in this restaurant（one）? Do you know who this dictionary belongs to?为什么用who,不用whom不是介词后要用whom吗 Do you know who i am?英语翻译 Do you know who is she? Do you know who i____the computer? Who d____ America,do you know Do you know who d________America -Columbus do you know who ___the America? Do you know who-------- ( 发明 ) the telephone? Do you know who that American is