I___to my brother since last summer.A.didn`t write B.hadn`t written C.haven`t written D.don`t write

分类: 作业答案 • 2021-12-19 11:38:47

问题描述：

答

I_C__to my brother since last summer.A.didn`t write B.hadn`t written C.haven`t written D.don`t write
since用现在完成时态
希望能够帮到楼主

答

C
since 主句用完成时态