No it hasn't because my grades are still pretty bad.
( ( No ( it ( ( has n't ) ( because ( my grades ) ) ) ) ) ( ( ( are still ) ( pretty bad ) ) . ) )
(ROOT (S (NP (DT No) (S (NP (PRP it)) (VP (VBZ has) (RB n't) (VP (PP (IN because) (NP (PRP$ my) (NNS grades))))))) (VP (VBP are) (ADVP (RB still)) (ADJP (RB pretty) (JJ bad))) (. .)))
I should really spend more time studying and try harder to get to all my classes.
( I ( ( ( should really ) ( ( ( spend ( ( more time ) studying ) ) and ) ( ( try harder ) ( to ( get ( to ( all ( my classes ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD should) (ADVP (RB really)) (VP (VP (VB spend) (NP (NP (JJR more) (NN time)) (VP (VBG studying)))) (CC and) (VP (VB try) (ADVP (RBR harder)) (S (VP (TO to) (VP (VB get) (PP (TO to) (NP (PDT all) (PRP$ my) (NNS classes))))))))) (. .)))