Do you know who is c____of the Helping Hands Club

Do you know who is she? Do you know who that American is Do you know who is he? Do you know( ) A.Who that is B.who is that C.is that who 应该选哪个? Do you know Who he is?能不能是Who do you know he is Do you know _____ is right?A.that B.who c.why 请问Do you konw who is the man还是Do you know who the man is do you know who is my teacher?or do you know who my teacher is?which is riht,and why? Do you know the boy (who is ) called Tom?和 Do you know the boy (who is ) callingTom?的区别Do you know the boy (who is ) called Tom?和Do you know the boy (who is ) callingTom?的区别 Do you know who is the a________ of this book? Do you happen to know who her doctor is?翻译 Do you know who the acticle is written _____? Do you know who is c____of the Helping Hands Club Do you know who is the co-founder of Apple? do you guys know who is Harper lee? Do you know who he is 正确吗语法? Do you know?Who is he?(合并为一句话) Do you know who is your teacher? 还是Do you know who your teacher is? 求解释