surprise test?

tell me why my history-geography teacher decided taht i have a test in geopolitics today??? like i just got into the online class and he was like O.K test for you today!! ..... like -excuse me! couldnt you have told us this last week when we had 4 HOURS of class.

JHGDLIUZHTZIUHFOIUEAHFIUZEHFAZ89HR89$

brb on my way to fail this test (all my tests w this teacher havent been graded cuz thtey were so shit >°<)