I was at home 意义可不可以相当于：I stayed at home

I was at home 意义可不可以相当于：I stayed at home I was at home at that m______. I am home可不可以改成I at home或I‘m at home I was at home yesterday 对at home提问 I was at home yesterday.(划线提问) I was at home last night.(否定) I was at home的意思是什么 I was at home yesterday.(划线提问) I am at home ,am 可不可以去掉,说出为什么? I was cleaning windows (at home ) at 8:00 yesterday I was back home和I was at home有什么区别? I was watching TV at home last night.特殊疑问句 I was at home last week.【改一般疑问句】 i was at home last sunday变成一般疑问句 I was at home yesterday evening.(改为一般疑问句) I was at home last sunday改为一般疑问句 Mary was hard at _____ when I got home. I was at home ( )my parents last Sunday