【初中语法题】【join】★用【过去完成时】还是【过去一般时】 Daisy______ Highfield school ,a new school that has just opened. A.joined B.has joined C.was joining D.had joined join (短暂性动词)什么时候要用完成时?
短暂性动词是可以运用在完成时态,如果是肯定句而且带有一段时间就不能用短暂性动词。 He hasn't joined the army,so he can stay with his mother. He has joined the army for one year.(错误) He has been in /has been a member of the army for one year.(正确)