YOU SAID:
i am in science class
INTO JAPANESE
私は科学のクラスにいます
BACK INTO ENGLISH
I'm in a science class.
INTO JAPANESE
私は理科の授業を受けています。
BACK INTO ENGLISH
I am taking science classes.
INTO JAPANESE
私は理科の授業を受けています。
BACK INTO ENGLISH
I am taking science classes.
You've done this before, haven't you.