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README.md

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 This dataset is a collection of multiple-choice questions, each with one correct answer, sourced from exams conducted within the Polish education system renging from years 2002 up to 2024.
 The tests are published annually by the [Polish Central Examination Board](https://cke.gov.pl/).
 
-Questions in the dataset is categorized into the following categories: math, natural sciences, biology, physics, and the Polish language for pre-high school questions, and arts, mechanics (including mining and metallurgy), and agriculture (including forestry) for professional exams.
+Questions in the dataset are categorized into the following categories: math, natural sciences, biology, physics, and the Polish language for pre-high school questions, and arts, mechanics (including mining and metallurgy), and agriculture (including forestry) for professional exams.
 Altogether, it consists of almost 19k questions. It has previously been used to evaluate over 50 LLMs, resulting in the creation of a leaderboard and a research paper available at the links below.
 
 https://huggingface.co/spaces/amu-cai/LLMZSZL_Leaderboard