TEACHER-who cleaned the blackboard yesterday?JOHN-I did.为什么回答是I did.而不是I cleaned.

TEACHER-who cleaned the blackboard yesterday?JOHN-I did.为什么回答是I did.而不是I cleaned. she_____the blackboard before the teacher arrived.A,had cleaned B,cleaned C,has cleaned D,cleans who cleaned the room yesterday,Dick cleaned,who,blackboard,yesterday,the 排列 快**********The windows are so bright,who ______them?_______上应该填have cleaned has cleaned还是cleaned?请讲出为什么 She has cleaned the classroom.（The teacher knows） Who is your teacher? 初中英语 现在完成时 的问题the room is so clean who has cleaned it 用cleaned行不行 who cleaned the room this morning?I did里面为什么不能用cleaned? 一个英语对话填空--who cleaned yhe classroom?--Tom_____.为什么只能填did而不是cleaned? who cleaned the classroom yesterday - dick _____ .A.cleaned B.did C.is D.does ---Who cleaned the classroom yesterday?---John ().A.cleaned B.does C.did D.is who cleaned the blackboard yesterday?--Mary( )单选A.was B.cleaned C.did I () who cleaned the classroom without telling me. The teacher ordered the classroom___at once and the students began to work .A.to be cleaned B.cleaned C.to clean D.being cleaned ---Who cleaned the window yesterday?---I ___.---Who cleaned the window yesterday?---I _____.A.have cleaned B.did C.have done D.cleaned敝人才疏学浅,不知其解,这厢有礼了 Who is your English teacher? Who s your math teacher?