why did you ... yesterday
Почему ты вчера осталась дома?
Why did you stay home yesterday?
Почему ты вчера так рано лёг спать?
Why did you go to bed so early yesterday?
Why didn’t you come yesterday?
Why did you leave class yesterday?
Мне нужно знать, почему ты вчера не пришёл.
I need to know why you didn’t come yesterday.
Why were you absent yesterday?
Почему ты вчера не пришёл на работу?
Why didn't you come to work yesterday?
Почему ты вчера туда не пошёл?
Why didn’t you go there yesterday?