Ответ:

В прошедшем времени с you употребляется were, с множественным числом — were, с their teacher — was. На фото строки задания дублируются, поэтому ответы повторяются.

  1. You were in the country last Saturday.
  2. You were in the country last Saturday.
  3. Her parents were busy yesterday.
  4. Her parents were busy yesterday.
  5. Their teacher was in the gym last PE lesson.
  6. Their teacher was in the gym last PE lesson.