国庆节你在干什么（英语)

What did you do during the National Holiday?

本人看法是，这个是将来某时对于过去的提问，理应用一般过去时。现在进行时一定不对，过去进行时和现在完成时也没有必要。
再者，人们的国庆节一般只是指这个八天假期，而非国庆日当天，所以我用during以及holiday，并用了定冠词the强调是这个假期

What are you doing on National Day?

what did you do during the national holiday?
你说的应该是国庆假期吧

what have you done during the National Day

What are you doing on the Nation Day?
楼上的，记得固定节日前要加the