请检查这句话有没有语法或者其他错误~

题目

请检查这句话有没有语法或者其他错误~
Before you told me,I even don't know that the sun rises form the east.

答案

后面一句应该用过去完成时态.
第二句的从句中sun rises不能用复数,而且缺少了一个系动词,该句表示客观事实,应该用现在时态.
正确的是：
Before you told me,I even had not known that the sun rise is from the east.