By the end of next month,the students__middle school.

问题描述:

By the end of next month,the students__middle school.
A.finished
b.have finished
C.had finished
D.will finish
为什么 我觉得是will have finished

By the end of next month 到下个月末
这个时间状语就可以看住事情还没有发生,用将来时态
By the end of next month,the students wll finish middle school
到下个月末,学生们将完成中学的学业