Shouldn't it be 어디에?
Shouldnt this be in the future tense?
It's common to use present tense for future plans just as we do in English.
What are you doing tomorrow" 내일 무얼 해?
Where are we working next month? 다음달에 우린 어디서 일해?
Is she throwing a party after graduation? 그녀가 졸업식 후에 파티를 여러?
I thought it was maths trip