YOU SAID:
I want to give you a higher grade for your test
INTO JAPANESE
テストでもっと良い点をあげたい
BACK INTO ENGLISH
I want to get better marks on the test
INTO JAPANESE
テストでもっと良い点を取りたい
BACK INTO ENGLISH
I want to get a better score on the test
INTO JAPANESE
テストでもっと良い点を取りたいです
BACK INTO ENGLISH
I want to get a better score on the test
That didn't even make that much sense in English.