死んだ人の高等学校 (shinda hito no koutou gakkou)
if you want to say dead in Japanese it is 'Shinda' - it comes from the verb 'shi' which means to die.dee-shee
学校にいた is how you say I was at school in Japanese.
I am a Japanese high school student. High school in Japanese is Koukou. But it is pronounced Kohkoh, long vowels in Japanese are written with the first sound then a う (translates into a u sound) people writing it write the u and this gives the wrong idea, so once again it is said kohkoh like as in "oh, i didn't know that" that o sound
Dinner is served!!
gakko no kamoku
In French, you say "lycéen" for a male high school student and "lycéenne" for a female high school student.
Nyūsatsu no gakkō
死んだ牛 (shinda ushi)
Kurai kage gakkō
A school's "sports day" is called 運動会 (undoukai) in Japanese.
'Welcome to school' would be学校へようこそ (gakkou e youkoso) in Japanese.
死んだ鴉 (shinda karasu)