YOU SAID:

tomorrow is the middle of the week in which I have exams therefore am sad.

INTO JAPANESE

明日は週の真ん中で試験なので悲しいです。

BACK INTO ENGLISH

I'm sad because tomorrow is the exam in the middle of the week.

INTO JAPANESE

明日は週の真ん中に試験なので悲しいです。

BACK INTO ENGLISH

I'm sad because tomorrow is the exam in the middle of the week.