（）the project,they have to stay there for another two weeks.A.no_英语解答

（）the project,they have to stay there for another two weeks.A.not completingB.not completed
C.not having completedD.having not completed 求详解

人气：161 ℃　时间：2019-09-22 02:54:51

解答

C 从过去到现在在到将来用完成时态而他的否定时态则在前面加否定词not