I didn't mess with the University entrance examination, because I have a university student, but I'm very busy with constant training in English because my University is an English test before school.
I did not mess with the college entrance exam. Because I have a college class. , but I'm too busy to practice English because my college English test before learning.
I wasn't busy with university entrance. Because I have a college class. but I'm too busy with training college English because my English test before class.