YOU SAID:

I have an A in almost every single school subject except reading

INTO JAPANESE

私は読書を除くほぼすべての学校の科目にAがあります。

BACK INTO ENGLISH

I have A in almost all the school subjects except reading.

INTO JAPANESE

私は読書以外のほとんどすべての学校の科目にAがいます。

BACK INTO ENGLISH

I have A in most of the school subjects except reading.

INTO JAPANESE

私は読書以外のほとんどの学校の科目にAがあります。

BACK INTO ENGLISH

I have A in most of the school subjects except reading.