scores on - english tests中的介詞用on還是in

介詞是用in，in English tests 爲固定搭配，中文意思是英語考試成績

What is more， because he could not speak very clearly， he had to put much more time preparing for English Speaking tests but still did not get good scores in the tests.最令人揪心的是，因爲口齒的原因，每次口語考試都要花許多功夫練習，結果還是拿不了最高分。