那项工作上个月完成了.That job _____ ______ _____ ____ last month. 答案为什么不用被动语态
问题描述：
那项工作上个月完成了.That job _____ ______ _____ ____ last month. 答案为什么不用被动语态
答
That job had already been finished/completed last month.