It isn't just that the level of education of this school is high. It's that it's also been consistent for
A. The level of education in this school, which is usually quite high, shows only slight variations from year to
B. The standard of education is not high in this school, but at least all the students are at the same level.
C. It isn't fair to deny that this school is successful, as it has had the same high standards for many years
D. Not only are the standards of education good in this school, but it has maintained those standards over