骆驼品牌有几种:Two years ago ,Sally was in a high school.Today,she studies in collage在这个句子里a high为什么要加a

这句话怎么翻译:Two years ago ,Sally was in a high school.Today,she studies in collage Two years ago ,Sally was in a high school.Today,she studies in collage在这个句子里a high为什么要加a Two years ago,the king killed with his wife "two years ago "不是表过去时吗?为什么可以与现在完成时连用?(since two years ago)而when就不可以? 34 Have you visited the new museum ____ two years ago? Eygpt 1000 years ago Anumber of years ago We________(teachers)three years ago Two Years and Two Months[下载][歌曲] teenagers did that__fun 20 years ago填空