问题描述: Sally has become a computer programmer since one year ago.错在哪 为什么` 1个回答 分类:英语 2014-11-12 问题解答: 我来补答 has become中become是个短暂动词since one year ago用现在完成时是对的但要用状态的has been来表达Sally has been a computer programmer since one year ago.其实还可以说Sally became a computer promgrammer one year ago. 展开全文阅读