4. What ___ you ___ (do) at 5 p.m. yesterday?

Перевод задания: Вставьте глагол в правильную форму.

What were you doing at 5 p.m. yesterday? (Что ты делал(а) вчера в пять часов вечера?)

В вопросе Past Continuous ставим were перед подлежащим: What were you doing?