I was cleaning my bedroom while someone knocked on the door改错

I was cleaning my room.(改为否定句) I （ ） （ ）my room. My robot was cleaning the floor when I walked into my room.改同义句 I am cleaning my room 划线提问 cleaning my room --------------------- I was cleaning my room when the fire broke out .改为同义句 i was (cleaning my room )at eight o,clock last night 对括号里提问 I was cleaning my bedroom while someone knocked on the door改错 I‘m cleaning my room.一般疑问句 I _____(clean) my room at 9:00 last sunday.是填cleaned好呢,还是was cleaning好呢? _ What's the matter with you ___While I was cleaning the window ,--What’s the matter with you?--_____ the window,my finger was cut unexpectedly.A.Cleaning B.To clean C.While cleaning D.While I was cleaning 这几个答案选哪个?为什么不能 I have changed a lot.I used to be short and had a large build.But now I am much taller and thinner.I was lazy before and I didn't like doing housework.But now I am a hardworking person and I often help my parents do some housework,such as,cleaning th I am cleaning my room对 cleaning my room进行提问 i,because,like,can,outside,cleaning,be,bike,i,the i,because,like,can,outside,cleaning,be,bike,i,the I was doing some cleaning.(对doing some cleaning做划线提问) I was doing some cleaning.(对doing some cleaning做划线提问) I was cleaning windows (at home ) at 8:00 yesterday I was busy doing cleaning 这句英语对吗 I was so busy cleaning my new house that I didn't eat___last week.A.little B.much C.few D.many