YOU SAID:
I missed school today so I am at home.
INTO JAPANESE
今日は学校を休んだので家にいます。
BACK INTO ENGLISH
I'm home from school today.
INTO JAPANESE
今日は学校から帰ってきました。
BACK INTO ENGLISH
I came back from school today.
INTO JAPANESE
今日学校から帰ってきました。
BACK INTO ENGLISH
I came back from school today.
Come on, you can do better than that.