He scored the highest possible mark for every physical test.

体能测试中，他得了高分。

He scored all fives on his evals last year, highest marks.

去年他绩评全优 最高分。

You've scored top marks on China's gaokao college entrance exam.

你在中国高考中得了最高分。

I am at a loss about how to use the following words correctly: score, mark, point, and grade.

score， mark，point，和grade。