Преобразуйте, если это необходимо, слово BE так, чтобы оно грамматически соответствовало содержанию текста.
How would you like to go to school on Saturdays? If you lived in Japan, that's just where you _____________ each Saturday morning. Japanese students attend classes five and a half days a week. The half day is on Saturday.
Secnond conditional — If Past Simple, I would V1. В данном случае: If you lived (Past Simple) in Japan, that's just where you would be (would V1) each Saturday morning.
Ответ: would be.