Need Educational site

hello i am in need of COLLEGE Level site Free
Grammar (college level)
Math (alg 1-2 + College level )
sentence types (SAT + College level ) not sure if the same things

I need a site that has question and you answer them like a test and it grades you

I'm going to go take a college entrance test and i would like to be thoroughly ready so i can get good classes and not have to take low ones sense college is very costly

Thank you so much in advanced

by Deucalion via TBN