Miss Li was not at home last sunday为什么用was not而不用didn't_英语解答

Miss Li was not at home last sunday为什么用was not
而不用didn't

人气：488 ℃　时间：2019-10-11 16:57:00

解答

be at home在家
上星期天过去时: was at home
否定式: was not at home