YOU SAID:
I'm very bored in a Biology class
INTO JAPANESE
私は生物学のクラスにとても退屈しています
BACK INTO ENGLISH
I am very bored with biology class
INTO JAPANESE
私は生物学の授業にとても退屈しています
BACK INTO ENGLISH
I am very bored with biology classes
INTO JAPANESE
私は生物学の授業にとても退屈しています
BACK INTO ENGLISH
I am very bored with biology classes
You've done this before, haven't you.