What you (to do) last night?
What did you do last night?
What you did last night?
What had you done last night?
What have you done last night?
সঠিক উত্তর:
What did you do last night?
ব্যাখ্যা ও নোট:
last night থাকলে Sentence টিকে Past indifinite Tense এ পরিণত করতে হয়। ইন্টারোগেটিভের জন্য did বসেছে।