Where were you at 7:00 lost night?-I ___ to my mother at home.A.write B.was writing C.wrote

BWhere were you at 7:00 last night?昨天晚上7点,你人在哪里?这里问的是昨天的事,所以横线上填的肯定是过去式.所以A首先排除I 【was writing】 to my mother at home.当时我正在家里给我妈妈写信.问题问的是【某一...