YOU SAID:

It's no secret for him to get a good mark on the next exam– He is doing well on all the courses.

INTO JAPANESE

彼が次の試験で良い点数を獲得することは秘密ではありません–彼はすべてのコースでうまくやっています。

BACK INTO ENGLISH

It's no secret that he gets a good score on the next exam – he's doing well on every course.

INTO JAPANESE

彼が次の試験で良いスコアを獲得することは周知の事実です–彼はすべてのコースでうまくやっています。

BACK INTO ENGLISH

It's no secret that he gets a good score on the next exam – he's doing well on every course.