YOU SAID:

Eric is the only person getting the GPA lower than 0.7

INTO JAPANESE

エリックは 0.7 を下回る成績を得る唯一の人

BACK INTO ENGLISH

Eric is the only one who obtains grades lower than 0.7

INTO JAPANESE

エリックは 0.7 よりも低い等級を得る唯一の人

BACK INTO ENGLISH

Eric is the only one who obtains grades lower than 0.7