it was they that/who cleaned the classroom yesterday.

it was they that/who cleaned the classroom yesterday. who cleaned the classroom yesterday - dick _____ . ---Who cleaned the classroom yesterday?---John ().A.cleaned They cleaned the classroom yesterday.改成一般疑问句 Who cleaned the classroom?怎么回答 Who cleaned the classroom?改为被动语态 they cleaned the classroom yesterday afternoon,（ ）完成反意疑问句 Who was the last student ___the classroom yesterday afternoo Who was the last student _____the classroom yesterday aftern Who cleaned the bedroom yesterday?John____. ---Who cleaned the window yesterday?---I ___. cleaned,who,blackboard,yesterday,the 排列