Нужен хороший перевод, через переводчик неправильно there are 50 subjects to study! do i really have to study all of them? - there is nothing to worry about you have to study only 5 compulsory subjects and you can choose the others. 2) - i'm really afraid that i'll fail the test again. - i shouldn't worry if i were you wait until you get the results of the test. 3) science is one of the most difficult subject for me. especially i hate chemistry. l'm frightened to take an exam in it. - there is nothing to worry about you can choose what exam to take: science as a whole or three different exams in biology, chemistry and physics.