YOU SAID:

For my end of school exams I took biology

INTO JAPANESE

私は学校の終わりの試験のために生物学を取りました

BACK INTO ENGLISH

I took biology for an exam at the end of school

INTO JAPANESE

学校の終わりに生物学を受験しました

BACK INTO ENGLISH

I took biology at the end of school

INTO JAPANESE

私は学校の終わりに生物学を取った

BACK INTO ENGLISH

I took biology at the end of school