Do you know the girl is talking with our teacher?为什么用that而不用whom或who.说明理由

Do you know the girl i__red? Do you know the girl ___ red Do you know the girl over Do you know the girl for yellow? Do you know the pizza girl? Do you know the girl（ ） glasses DO you know the girl’s name?【改为同义句】DO you know the------ -------- the girl? Do you know the girl with the shirt ______? Do you know the girl in the yellow ()[shirt;skirt]. do you know the girl(stand)___at the gate? Do you know the girl _____ the right Do you know the girl at the desk?-Yes,_______ Do you know the（ ） name?Do you know the（ ）提示(girl) name? Do you know the girl ______a red skirt?填介词 Do know the hot dog you girl如何连成句子 do you know the girl with long hair? Do you know the girl ____ (name) Betty {说理由} Do you know the girl ____(name)Lucy