Why sometimes we have to include the subject or we're marked wrong, and others like here it's not even an option?
경찰서에서 그는 밥을 먹습니다.
그는 would go before 경찰
why do we need to include the rice? There isn't any rice in the original, can't we just say, he eats at the police station? 경찰서에서 먹습니다. <--like that.