The number of students atttending the university______(rise) steaduly since 2000

问题描述:

The number of students atttending the university______(rise) steaduly since 2000
用been rising 吗

应填has been rising.
有since引导时间状语,主句用现在完成时或现在完成进行时.
不明白的再问哟!请记得采纳,多谢!has risen和has been rising有什么区别