Our monitor cleaned the room an hour ago 变为一般疑问句

Our monitor cleaned the room an hour ago 改为否定句 Wei Fang cleaned the classroom an hour ago.的一般疑问句怎么提 He cleaned the room this morning.变为一般疑问句. I typed this letter an hour ago.(变为一般疑问句并作否定的回答） My classmates cleaned our classroom.变为一般疑问句 We like our room.(变为一般疑问句 They have cleaned the room already.改为一般疑问句 he cleaned the room this morning改成一般疑问句 He was seen () in the reading room an hour ago. Jim cleaned his room yesterday一般疑问句 括号内一般疑问句,否定回答：Helen (cleaned the blackboard) ten minutes ago I cleaned the whole house three days ago改为一般疑问句